sometimes when driving under partal throttle, the engine hesitates and there is no power, but if i let my foot off the gas completly , then put it back it works as normal.

map sensor problem or distributor cap?

or somthing else??

 

I would think MAP sensor based on the sporadic arrival of the problem.

 

check your o2 synsor too

 

what mod's do you have.......

I had the same problem, but I've got high compression ~ 11.4cr.......

I changed my o2 sensor, cap/rotor, wires and fuel filter and they didn't do ****!

mine turned out to be......., I had wrong timing and the wrong spark plugs (to hot)