mardi 30 juin 2015

ratio math

My limited math skills are failing me today. I have a 60 corvette that I changed over to a tach drive HEI dist. Now I want to use a ratio adapter to run the stock tach. I know that the distributor runs at 1/2 engine speed rpm. I have found an adapter that speeds it up 100%. Is this the one that I need or look for one that speeds it up 50%? I know this isn't rocket but it's sure stumping me. Thanks


ratio math

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