Ok, i do not have a timing light.

If i feel a serious enough power increase once i hit around 2800 rpms under full throttle, yes this mean my vac adv is workin, but how far off am i on timing? Yes a N/A.
Also once warmed up, it will try to foul out spark plugs, yes i am still running rich.

 

Hmmm.... Clutch time? Clutches will act all weird like that when they're worn down.

Does it kind of feel like a powerband on a dirt bike? If so....could be the clutch.

 

never been on a dirtbike. I know i am running rich as hell, so my thoughts were, timing out, and to much fuel. so when the mech advance kicks in, and the engine is running in a high enough rpm, it can burn the fuel, and spark it. but thats just thoughts. the clutch grabs great.

 

on my 280zxt my 82 i put on a hybrid t4-t3 turbo ... it spooled sooo loud between 2,500 rpm all the way to 5,500 rpm that it sounded like a jet engine no joke ! but i noticed my clutch wasnt holding really well 10 mph i had to shift to second damn !

 

well, i aint got no turbo but i am smelling more and more raw fuel, i am gona pull the injectors tomorrow and see there spray pattern. my system holds pressure for about 20 hours then drops to 10psi. i adjusted the swipe pattern inside the AFM, seems to be running a lil smoother. But i have been focusing on the front suspension.