Alpine4x4
Red Skull Member
Ah 91 be hurtin. We're relegated to 91 here too and I know I lose a lot of timing vs a 93 tune or ethanol. Just going to 93 would put me around 11.9-12 flat in the quarter. Once our house is built this fall I will be doing pulleys on mine if I dont trade it in for a V8.91 pump gas tune with the large pully.