Quote:
Originally Posted by TRADERMIKE 2012
Mikes Reply:
Living in south Florida on a cool night in the winter the 1967 428 HO loves the higher 93 octane with 10 % Alcohol but the next day it is 90 degrees and the Alcohol takes affect and starts vapor lock issues. Then I have to go to the Rec- 89-90 fuel, less Alcohol.
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your engine vapor locks at 90f?? even with all the cooling mods, phenolics & heat wrap? if so, something somewhere is not right...