i just did a mini me with a a6 block an a z6 head i removed the oil jet ,its wired properly , an i have a p28. pretty sure vtec is not engaging but you cant really hear ****. it will not rev past 6k it sounds like at 9 does not actaully hit a rev limiter. there are no codes. the motor is very boggy at low rpm's. every thing on the head is from a z6.it also has a starting problem now but that hopefully has nothin to do with this problem god knows i have enough lol thanx if you can help

 

sir let me ask have u double chk your cam timing is it at TDC, or are u using an adjustable one

 

Yes, timing is fine