If anyone could help me out i would appreciate it. So i have a 91 ls DA and im going to go vtec pretty soon. I have a pw0 ecu at the house and just for the hell of it, i plugged up the ecu yesterday and took the car for a run. Since the swaps comin out anyways, i decided to have some last minute fun! So i reved the car in first gear and i expected to hit 8000 rpms, but instead the car cutoff at normal rev limit, 6500. My question is that do i need vtec to hit these rpms, or is my ecu simply f***ed?? lmk ppl. Thanx!!!