first a little background info. A friend of mine bought a 52 chevy 1.5 or 2 ton(not sure which as the vin was missing) a few years ago. we have since had it titled put kits in the rear wheel cylinders and new front wheel cylinders, and new master cylinder. The brakes have been bled and adjusted to were the shoes have a very slight drag. newly lined shoes and new rubber brake hoses installed. The problem in the pedal goes almost to the floor the first time it is pressed and only half a pedal after that. I cannot imagine what else could be the problem. Secondly the original engine would run but was wore slap out so we installed a full pressure 235 from another project. The 235 manifolds were toast so we installed the intake and exhaust from the original motor. The motor runs smooth as can be has good compession, does not burn oil or smoke. The problem is it is very sllllloooooowwwwwww. It takes a while for it to get to speed and is very slow to rev up. I have a 51 Ford f6 two ton that will literally run circles around this truck. What gives? Could the carb be too small? We installed the stepped sleeves to adapt the manifolds, checked timing, fuel pump is new, and new fuel lines. I am outta ideas
