Formula to shave pistons to reduce compression ??

Garrett Ellison said

If you're up for a challenge... separate fuel system and storage for the nitrous enrichment with e-98 or Methanol and let it eat... Just remember it takes a greater volume of alcohol for enrichment than gasoline and you still need to retard the timing when spraying but it makes more power for a given amount of N2O.

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Back around 1987 we built a Dodge Omni GLH Turbo running a true 9.5:1 CR, ported G head and a 270 Adv cam. Ran fine on 93 octane with the 'Knock Sensor' and boost set at 14 PSI. But not with spray and 20 PSI. We had added a 125-150 shot of nos. So we put a small second fuel tank with an internal electric pump. A relay would kick in the second pump for the nos and the boost bleed setup. We ran 115 Turbo Blue in the second tank. We ran the nos's fuel pill a wee bit fat due to the extra 6 PSI of boost.