I put my crower 403's in along with dual valve springs skunk2 intake manifold and gsr throttle body. On first start up it barley ran. But i kept on the throttle for a while now it drives. it bogs bad under 2k rpm then is fine after 3500 rpm and starks bogging again around 4500 and is slow as hell. Then after 6k rpm it pulls. this is with no tune but i am going to tune in a few days. my question is that is it supposed to run this bad? i have heard of people having problems with idle but not through the whole power band. could my timing be off? need some help.

 

Get it TUNED!

 

I AM!! haha ya i was just worried.

 

He means tune it BEFORE you destroy the motor from driving it around without tuning. The A/F is totally tweaked with all those modifications.

Pirate