Reply to "Tuning help needed"

panteradougMember

Clevelands are very sensitive to fuel quality. The high octane gas necessary to run a fast, all in by 2,500rpm, advance curve is long gone.
Try it if you like but it will ping like the end of the world is here and commonly detonate so badly that the engine will shut off.
If you want to run 106 octane race gas, then fine, it will work great, but on the street you are going to have to slow the curve down and be all in by 5,000rpm instead of 2,500.
This is even true in my experience if you have a low compression Cleveland.

7/6/114:58 AM

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