foxracing350 Posted February 2, 2008 Report Posted February 2, 2008 i am putting a noss head with 21cc domes and advancing the timing to +4 and i want to still run on pump gas how do i check to see if i need a higher octane fuel? Quote
gemini Posted February 2, 2008 Report Posted February 2, 2008 just check the compression and see where its at. i dont think you'll have any problems runnin pump gas with 21cc domes. Quote
foxracing350 Posted February 2, 2008 Author Report Posted February 2, 2008 whats the highest compression you can go on pump gas? Quote
gemini Posted February 2, 2008 Report Posted February 2, 2008 i had 20cc domes a while back with 165 psi on pump gas with no problems. Quote
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