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2G Top end sputter under heavy acceleration


Proven Member
May 2, 2019
Livingston, Louisiana
So I swapped my trans a while back and the car started missing bad. Since then I’ve replaced the following: spark plugs, fuel filter, fuel pump, maf & air filter(adapter-cone). Car has a new fuel tank and I’ve jow ran a cpl bottles of injector cleaner and use only 93 octane fuel. Checked all vacuum lines and checked that I’m not losing fire thru my wires anywhere that I can see in total darkness.
It’s only sputtering on the upper end of my gears and under hard acceleration, if I lift off the pedal and ease into it she runs strong. I also bypassed my fuel pressure regulator temporarily to rule it out as the problem and nothing changed. Anyone had this problem or have any idea what could be causing it?? Any help is appreciated.
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