351 Windsor Running Slow Need Help
11-09-2011, 04:50 AM
#11
2nd Gear Member
Join Date: Apr 2008
Location: NJ
Posts: 451
If it has a stock hood then it's a 302 block. If it has a raised hood then you're gonna have to post some pics or send some via PM or email and one of us can tell you what you have. You're dealing with an engine you have little information about so the best bet is to plan your own engine build for the future. That way you'll know everything about it. For now I'd say change the HCI, carb, and ignition set-up so at least you'll know that much about it.
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
11-11-2011, 12:24 PM
#12
M.A.D. Motorsports
Join Date: Jul 2006
Location: Indiana
Posts: 8,014
If it has a stock hood then it's a 302 block. If it has a raised hood......
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
You can fit a 351 under a stock hood.......
OP, you have a 306 with old stock heads, even if they are the ones everyone uses as an upgrade, they still are not much better than E7's. Your timing is retarded 2 degrees....are you talking about your cam timing?
Yes you will get beat by that Z28 as you sit....
What are the cam specs??
11-12-2011, 12:27 AM
#13
Thread Starter
Join Date: Jan 2011
Location: New Mexico
Posts: 11
You can fit a 351 under a stock hood.......
OP, you have a 306 with old stock heads, even if they are the ones everyone uses as an upgrade, they still are not much better than E7's. Your timing is retarded 2 degrees....are you talking about your cam timing?
Yes you will get beat by that Z28 as you sit....
What are the cam specs??
OP, you have a 306 with old stock heads, even if they are the ones everyone uses as an upgrade, they still are not much better than E7's. Your timing is retarded 2 degrees....are you talking about your cam timing?
Yes you will get beat by that Z28 as you sit....
What are the cam specs??
11-12-2011, 12:34 AM
#14
Thread Starter
Join Date: Jan 2011
Location: New Mexico
Posts: 11
If it has a stock hood then it's a 302 block. If it has a raised hood then you're gonna have to post some pics or send some via PM or email and one of us can tell you what you have. You're dealing with an engine you have little information about so the best bet is to plan your own engine build for the future. That way you'll know everything about it. For now I'd say change the HCI, carb, and ignition set-up so at least you'll know that much about it.
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
As far as it running slow, how long have you had the car? Does it feel slower as of lately? Where did you get the car from? Was it originally a V6 car? What trans is in it? What gears? It could be a lot of things. Those heads probably aren't flowing that well. It might be a low compression set-up. The carb might be too big for what you have. Was the fuel system adjusted to accept a carb? Have you done a leak down or compression check? Also, how much knowledge do you have on these cars? How is your mechanical ability? Everyone will try to help you out as much as possible...well most of us, haha!!
11-12-2011, 07:57 AM
#16
M.A.D. Motorsports
Join Date: Jul 2006
Location: Indiana
Posts: 8,014
Well since you haven't ever used nitrous I would remove it and store it away until you get some experience under your belt. The 650 is a little big and you should go to a 600.
Again, what are the specs of your cam???
What MSD components do you have?
You said your timing is retarded 2 deg....what is it actually at though? Put it at 12*BTDC and you should be safe....again without the nitrous.
What do you have for an exhaust?
Do you have any suspension upgrades?
Do you have a regulator with that Holley blue?
Again, what are the specs of your cam???
What MSD components do you have?
You said your timing is retarded 2 deg....what is it actually at though? Put it at 12*BTDC and you should be safe....again without the nitrous.
What do you have for an exhaust?
Do you have any suspension upgrades?
Do you have a regulator with that Holley blue?
11-14-2011, 07:41 AM
#17
2nd Gear Member
Join Date: Apr 2008
Location: NJ
Posts: 451
If I were you I'd get rid of those heads, the cam, and the carb. I think your car would really wake up if you ran better matched components. You can get a used cam for a pretty decent price...I've seen used heads (Performer RPM, AFR 185, Twisted Wedge) go for about $750 to around $900 on Craigslist and Ebay. That carb will better suited for that type of combo or you could probably do a straight up trade for a better one. And then get the timing right and you'll be set for now.
11-14-2011, 04:54 PM
#18
Thread Starter
Join Date: Jan 2011
Location: New Mexico
Posts: 11
[QUOTE=projectresto83;7748006]Well since you haven't ever used nitrous I would remove it and store it away until you get some experience under your belt. The 650 is a little big and you should go to a 600.
Again, what are the specs of your cam???
What MSD components do you have?
You said your timing is retarded 2 deg....what is it actually at though? Put it at 12*BTDC and you should be safe....again without the nitrous.
What do you have for an exhaust?
Do you have any suspension upgrades?
Do you have a regulator with that Holley blue?[/QUOTE
All I know is that it is a crower cam,I have mac longtube headers to offroad h pipe to super 44 flowmasters, the car has upper and lower control arms with aftermarket struts I also have a regulator for the holley blue too
Again, what are the specs of your cam???
What MSD components do you have?
You said your timing is retarded 2 deg....what is it actually at though? Put it at 12*BTDC and you should be safe....again without the nitrous.
What do you have for an exhaust?
Do you have any suspension upgrades?
Do you have a regulator with that Holley blue?[/QUOTE
All I know is that it is a crower cam,I have mac longtube headers to offroad h pipe to super 44 flowmasters, the car has upper and lower control arms with aftermarket struts I also have a regulator for the holley blue too
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