I took the 327 , made it 60 over and put a 283 crank / milled 10/ in it. for some reason I'm not getting fuel to the carb. I had the same pump on a 350 that was in the car for a while so I know it worked. Should I have to change the pump to match the 283 crank? Yes there is gas/GOLD/ in the tank. Or did my pump just take an unexpected crap? Single feed no return. It does run when dumping gas down the carb. YEAH!!!!!!!!!!!