{Maybe the 750 seems crappy because it's too big for most 351s with an old intake manifold}

ya.i thought the same thing...holley's are great race carbs.....but a 750 cfm or a 750 cfmdouble pumper is a bit much for a stock 351w...considering a 600cfm elderbrock is good up too 400 horse with right jetting.....750 is just a little much...600 to 650 cfm is the perfict carb for a small block ford...unless your runing 11 or 12 1/2 compression and a air gap manifold in that 351w

 

its not a 351ci its the world man o war 460 short block afr heads my compression should be around 11 to 1 mike i love it so far if you buy theres spend a little more for the axle housing its a 9 inch with everything welded on

 

get an rpm air gap intake and a nice speed demon carb....if its gonna be a nice street driven car go with a 650 speed demon..i love it!! carb $450 intake about $220(jegs)

 

I agree with roostracing ... an RPM Air-Gap dual-plane intake and a 800 Thunder Series carb. That's what I just bought for my 408 stroker with Victor Jr heads. The 650 cfm according to Edelbrock is too small for my application and would just be a problem at WOT. I looked into EFI as well ... kinda a lot of work and $$$$. Edelbrock has a complete kit but it's a speed-density system (not all that great). Holley has a TBI speed-density system too (even worse) as all the fuel is just shot into the intake like a carb system so why bother? Mass-Air-Flow has a system which uses a GM mass-air-flow-sensor close to the intake and a A9L Ford computer (87-93 I believe). It seems quite expensive and I wonder if your cammed up a lot if there will be a problem with the air coming back out of the intake at idle and the sensor will get erroneous readings? I also looked at just doing the 5.0 swap but since I don't have any parts I'd have to get the whole shabang and it seemed like a lot of work too for the amount of time I'd be driving the car. Also because I have the newer 4R70W eaod tranny I still needed a way to control it so I am going with the Baumann TCS which I have now. If you go on the edelbrock site it has info about sizing carbs vs hp and that may help. IMO just go get a good dual plane intake and the proper sized carb and be done with it. Good luck with your decision.

 

This is why a detailed signature can be very helpful...

 

i emailed mass flo he will build me any style system i want to feed anything i can build im probably gonna go with him or retrotekspeed.com has some plug and play efi systems too bad there site is lacking

 

It's why a detailed description in the post is even better. Sigs tend to not be updated as progress is made, and can end up with two words related to the post buried somewhere in the middle of several lines of informationthat does not.

If it really is going to be a 460, we needed to know that from the get-go instead of wasting time with 351 thoughts. I'm still not sure which it will be. . .


Norm

 

+1

 

{If it really is going to be a 460, we needed to know that from the get-go instead of wasting time with 351 thoughts. I'm still not sure which it will be. . . }

i just thought the same thing..lol..i figured he was talkin about a stock 351 w...which a 750 holley is way too much carb..lol...need the right info