Quote:

Just wondering what you guys have experimented with. My Hemi is around 10.75 to 1. N/A and only a 472 with a well-tuned Dominator. Wondering if I should throw some in, if it will kick it up a notch. Thanks.. Need every tip going against a 68 Black Pig at Norwalk !! LOL



I started out using 114 octane and I switched to 112
and the car picked up in MPH and ET... if you dont
change timing to compensate for the slower burn rate
of the higher octane you WILL go slower... also there
is a point where if you add timing its a hindrance
slowing the piston way down the cyl... have to balance
the octane to timing based on compression and efficiency
of the head