i have a h22 head with a f23 block its working fine and all and im not runing k pistons one thing it bogs out between 4000 rpms and goes back to normal a lil over 5000 sometimes some times i burn the igntion coil fuse any one i need some help thanks guys

 

Is it tuned and what ECU are you using?

 

im going to tune it this friday pay check and im useing a p28 chiped alreaddy