MrMustang,
Is my current carb too small for this motor? I just received the specs on the motor, from the dude i bought the truck from. It has a Crower Cam, part number, 16915 - FORD 332-428 BAJA BEAST HYDRAULIC CAM (268-H). The lift on this cam looks to be .484 intake and .495 exaust . The gentleman i purchased truck from said he had a single plane weiand on it, and that it ran like crap with this manifold. He also had a different carb on it. The afb i have may need seals on the accel pump, i may just toss a rebuild kit at it. I really didn't wanna be messing with this truck, baahhh. Basically the truck started to have a bad miss, so i ran a compression check, and i had low compression on cylinder 1 i had 135psi 2,3,4 i had 195, 5 was 170, 6 was 185, and ;7,8 were 195psi..... I then did a wet test it came up the same. Rather then do a leak down, i just tore the heads off. While taking the intake off i notice the damn carburator nuts were all loose. Would loose carb nuts create this lean condition? I brought the heads into a machine shop. The fellow, at the shop, said i was running lean and heated some exaust valves too hot. The shop is going to put new seats in where needed. This truck is a friken money pit. bahh i gotta stop thinken about it. Maybe i shall slap the factory intake manifold back on. Will this Carter AFB 9637sa0516 suffice on this engine the way it is built. I was told it is a 625 cfm.

thanks for all the help thus far.

Joseph