Quote:
Originally Posted by charlie66
So, with a carburetor and a MSD distributor with vacuum advance and a 6al box is 10.5 to 1 still a save zone for 91 octane for street driving?
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Yes, I feel with a pretty good tune up you will still be in the sweet spot. Not personally familiar with your camshaft but the basic specs. you posted don't scare me. Around here, 91 octane is the highest you can get with zero alcohol. 93 octane is available with a 10% alcohol blend.