cavemile

can anyone help , im building a 347, gt40p ported, 24lb or 30lb injects, havent chose valves yet either , exsploder intake,65mm throttle, cobra computer, for the street/strip. I need a cam? e? b? x? or comp nx274hr,? custom?

Portmaster

There would be no sence in wasting the money on a custom ground cam on an engine that doesn't have the heads to support the cubic inches. If you absolutly have to use those heads I'd say a Comp XE270HR. Put a 3:55 in it max. Your engine will be suffering at 5000 rpm

AdderMk2

why build a great bottom end, to just top it off with a set of polished turds?

duneking905

i was planning on buying a 351 block and start fresh. and keep my stock motor as a spare or maybe install it on my other ford truck.

mjr46

cobra computer is calibrated for 24 lbs so 30 will not work with it. head choice sucks, so does intake and I'd go custom cam once you straighten out your top end.

luckythirteen13

dont even bother building the motor if those are the heads and intake your going to use

AdderMk2

care to explain why???

seems as though the 30# injectors work fine in my car..... food for thought

mjr46

if you say they will I'd trust what you say more than since you are doing it

OnyxCobra

30lbers will work, just needs to be tuned for it.

AdderMk2

you dont need a tune to run 30# injectors.... just need the right maf