bore kit

[ebo 4356]

if i put a 416 kit on what octane should i run.

[400exrider720]

What Compression? I am doing 11:1 and everyone says that you can run pump 93 octane gas. Any higher and you should run race gas.

[CHEVYZ]

93 and up for any bike. Depending on the compression, I usually say that it would be wise to run a 50/50 mix of race gas at 11:1 (depending on the application), and up from there.