i did my 5spd conversion and at first ihad the p2u5(f22) tranny. so i swiched it out for an m2f4(h22)tranny. the tranny shifts great and i love the constant high rpm but then i decided to cruse and in 5th gear i was doing 70 and 4800 rpm. I have a lightned flywheel(act prolite 9lb) could that be the reason, if not my gas mileage is shot.




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