low rpm sputtering (poor performance)
i recently had a lifter go bad and replaced with new ones, changed out all of them and the cam was not scarred, but on one of the first few test drives after the repair i noticed a catalatic converter had a nice hole in it, so i decided to delete them neways ( no emissions in my state) but i figured that the bad cats would have caused the sputtering. i guess im kind of lost. where do i look next. it doesn't affect highway driving, only the first 3-500 rpms in every gear. please help, i dont want to ruin anything..
94 mercury cougar split port swap,
upr/lower intake manifolds, valvecovers, TB, CAI, MAF, fuel rail, some injector wires, TPS, IAC.....................
this was everything removed when repairing the bad lifters.....
please help me!!!!!!
1985 THUNDERBIRD CFI 5.0L..
h-pipe, shorty headers, stock everything else
DEDICATED TO THE SURVIVAL OF COUGARS AND THUNDERBIRDS