V.P. C-11 vs. C-12

[Cdncarnut]

Originally Posted by J.R. Haddad

We've got a 1992 Camaro J/SA car, 350 TPI. We run C-11 now, and
are happy with it. All I can get for this weekend is C-12. What should
we expect, and what should we watch for. Thanks, J.R.

The car will be slower due to higher octane in the C-12...
You may be able to lean out the carburetor and/or run a little more timing as detonation will be less of an issue...