Quote:
Originally Posted by tom s
being this is in the street section,a lot depends on the quality of gas you can buy from any pump in your area.I know our calif 91 is WAY diff from the 93 that can be bought in other states.Also the air temps and the type of driving like stop and go traffic in 100 degree heat.Just too many things to take into account.Tom
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I know with my engine combination it has ran on 87 octane with no problems in any temperture.85cc KRE heads on a 462 with "Old Faithful" cam.Usually I buy 91 octane at the pump for piece of mind.