89 octane vs. 104 or 110 octane

[gtsr515]

Those cars your looking at (maybe mine?) are surely running a bit more compression. A stock stang is 9.0:1, mine is roughly 10.75:1.

If you are stock, 93 is the best you can pump, very high octane is for higher compression motors, or power adders cars.

Honestly, in my street stang, I run the cheap 87, and am still spankin' high end chevy's, etc.

High octane burns slower, thus, smoother, lower octane burns quick, BANG, thus, actually, theoretically, quicker.

I am on my 9th Miller Lite though.........