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Old 06-23-2013, 08:34 PM   #1
90foxbdy
 
Join Date: Jun 2013
Vehicle: 1990 ford mustang convertible
Location: Michigan
Posts: 10
Default i need your opinion for a NA 306 build

hey all, i have a 306 with the stuff in my signature below bolted on. im not trying to make my stang a full blown race car; i need to be able to drive the car in the summer basically everyday. so i was thinking a set of underdrive pulleys, gt40p (5.0 explorer) upper and lower intake and maybe some kind of chip. would it be worth it to invest in a bigger maf or throttle body?

really i would like some other ideas and some input of what i just said. i just got my baby a month ago and dont know what the best ideas are and stuff. what about a fuel preasure reg? bigger or smaller injectors? what about heads, are they worth it? since i have a cam i think i will get great gains from intake and stuff. any ideas or feedback would be greatly appriated. thansk.
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1990 4cyl convertible swapped to a 306 w/TKO

outside: carbon fiber cowl hood (functional vent) , steeda front bumper, blacked out head/tail lights, fresh paint, tints

Engine/Rear: 306, stock block/heads/intake, E303 cam, BBK fender mount intake inlet, H-pipe/flows, MSD coil, wires, 3.73 gears, 17" w/9" tires

shes not the best in the world, but she'll do for me.
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Old 06-23-2013, 09:00 PM   #2
Duncan_GT
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Quote:
Originally Posted by 90foxbdy View Post
so i was thinking a set of underdrive pulleys, gt40p (5.0 explorer) upper and lower intake and maybe some kind of chip.
These are usually the basic bolts ons for a budget build 5.0. They will net a noticeable gain in power

Quote:
Originally Posted by 90foxbdy View Post
would it be worth it to invest in a bigger maf or throttle body?
MAF, in my opinion, is one of the last things to upgrade. Although, if you get bigger injectors, you'll have to tune the MAF to match the injector size. I would upgrade the throttle body to a 65 or 70mm, but again that's going to depend on which intake you have. Speaking of which, your signature shows you have a stock intake and a BBK intake. Do you have different upper/lower manifolds?

Quote:
Originally Posted by 90foxbdy View Post
bigger or smaller injectors?
The stock injectors can support up to 300hp, I believe. So, pending your goals, you can keep them. Although upgrading to 24lb isn't a bad idea as it gives you room to grow.

Quote:
Originally Posted by 90foxbdy View Post
what about heads, are they worth it?
You have a lot of homework to do.
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1995 Mustang GT
1999 F150 Lariat 4x4

Soon to come: 393 stroker
351w bored .030, Probe Industries forged internals, Trickflow 205's, FTI custom cam, Trickflow R 90mm intake, Accufab 90mm TB, FRPP 42lb injectors, 1 3/4" custom Accufab LT's, 3" exhaust, MS2

Last edited by Duncan_GT; 06-23-2013 at 09:04 PM.
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Old 06-23-2013, 11:05 PM   #3
tinman
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A set of aftermarket heads will net you some serious power if used right.
I would use one of the 'smaller' heads from Edelbrock or AFR, by 'smaller' I'm meaning the measured size, in CC, of the intake ports.
Something around 175CC would do for your 306.
I'll say that the 'E' cam while better than stock is very obsolete, many newer grinds will make more power and they'll work good with those heads too.....
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Old 06-24-2013, 09:13 AM   #4
90foxbdy
 
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Vehicle: 1990 ford mustang convertible
Location: Michigan
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Thanks guys,
when it comes to pullys is there a set that anyone recommends? i have an A/C delete kit and would like my car to run semi-normal.

i have a stock upper and lower intake with a BBK fender mount inlet. does anyone have a used/new aftermarket upper and lower looking to get rid of ? thanks!
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1990 4cyl convertible swapped to a 306 w/TKO

outside: carbon fiber cowl hood (functional vent) , steeda front bumper, blacked out head/tail lights, fresh paint, tints

Engine/Rear: 306, stock block/heads/intake, E303 cam, BBK fender mount intake inlet, H-pipe/flows, MSD coil, wires, 3.73 gears, 17" w/9" tires

shes not the best in the world, but she'll do for me.
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Old 06-24-2013, 09:50 AM   #5
Duncan_GT
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Check corral.net in the classifieds section. You can usually find some really good deals on intakes
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1995 Mustang GT
1999 F150 Lariat 4x4

Soon to come: 393 stroker
351w bored .030, Probe Industries forged internals, Trickflow 205's, FTI custom cam, Trickflow R 90mm intake, Accufab 90mm TB, FRPP 42lb injectors, 1 3/4" custom Accufab LT's, 3" exhaust, MS2
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Old 06-24-2013, 09:14 PM   #6
reldla1996
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Heads would make the biggest difference. Intake will help. I'd do the MA before I did the TB, it's more restrictive. Your factory injectors will work fine for what you're talking, and you don't need a chip or a fuel regulator.
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Old 06-24-2013, 09:14 PM
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