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Mike Croley · 02-14-2014, 04:08 PM

To tune for a different brand of race gas here are some basic rules of thumb,
A change in Specific Gravity of 0.010 requires a change of 1 jet size. That's for leaded racing gasoline. Switching to or from an oxygenated race gas typically requires a change of 3 or 4 jet sizes.

02-14-2014, 04:08 PM	#14
Mike Croley Member Join Date: Apr 2010 Posts: 182 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference To tune for a different brand of race gas here are some basic rules of thumb, A change in Specific Gravity of 0.010 requires a change of 1 jet size. That's for leaded racing gasoline. Switching to or from an oxygenated race gas typically requires a change of 3 or 4 jet sizes.