LA360 Octane

Mcfarlrm said
I do not know what my compression is but figured this would let me know if its higher or lower than 12:1

Do a cranking compression test, if it is a 180 or higher you will want to run 91 octane or higher usually about 100 octane works nice for 180-200psi cranking cylinder pressure... that doesn't mean 93 wouldn't work good in the lower range of that