ok guys wat my car is doing... about almost two weeks ago now my car was running fine and then it started sputtering really bad to the point it wouldnt rev past 2500rpm it would just sit and sputter. if u keep on the gas it will rev up then come down and die. and it was spitting out alot of smoke and smelled like gas really bad . i didnt think it was getting spark ,so i changed the cap and rotor and wires . it started and ran fine for about 8 min. then died and started sputtering really bad again. so then i was told to check my fuel pressure regulator and i smelled gas in the vac line. today i changed my regulator, spark plugs, and put a pressure gauge on it. i also went over my rockers and adjusted them one more then i did a compressiion test and i had 150 psi in all cyl. i started the car and it was fine it was running really good at about 20 psi? "thats really low right? isnt stock like 35-40 psi? "so i started to turn it about and i set it at 38 and it started to sputter again. its like once it heats up it sputters. the car has not been tuned yet but it was running fine for about 3 weeks when i got done with it. wat can it be please help?