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jmarkaudio · 02-12-2014, 03:58 PM

What you want to pay attention to is the SG and RVP of the different fuels. Similar specs on both will usually need similar jetting and perform close. If either deviate you will likely need to make changes. As far as lower octane than 100, what are you looking to lower octane for?

02-12-2014, 03:58 PM	#8
jmarkaudio Junior Member Join Date: Apr 2008 Posts: 83 Likes: 0 Liked 0 Times in 0 Posts	Re: VP to Sunoco reference What you want to pay attention to is the SG and RVP of the different fuels. Similar specs on both will usually need similar jetting and perform close. If either deviate you will likely need to make changes. As far as lower octane than 100, what are you looking to lower octane for?