well friday night was good until my car started doing something, i installed a raptor shift light and did a few 1-3 runs up to about 5700 rpms and everything was good, got out and started messing around later that night, and just past 5000 rpm in all gears it is stuttering, feels like it dies then comes back on and repeat, and if i revved it up to about 57-5800 rpm and held in the clutch the car would die but i could start it back up,
now what does this sound like plugs and wires, opti, or fuel pump or something else im not thinking of
i unhooked the raptor light just because it started doing it after i installed it and it kept doing it so i dont think thats the problem

 

i also just noticed i have a knock from somewhere i couldnt pinpoint it didnt really sound like the heads could the opti be making the noise and with all i listed what could it be in the heads doing that

 

i have a simialar problem with mine sputters @5400RPM through the rpm on everyshift, i was told it was a opti, coil wire that goes to the coil also

 

ok well i guess ill have to get a new one im getting engine rebuilt cause of some problems i started having.... have to look around at the opti's see what i can find ill prolly get a new one and a new cap and rotor...