i have 15" rota slips and i run 225/50/15s and my speedo is dead on.... if u rung a 60 side wall ur gonna have to do some trimming of the inner fenders so u dont rub... unless ur on stock rideheight
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148 cubic inches of pure whoop "butt" AGP Delta 44 w/ goodies
"happiness is positive cash flow"
The purpose of ignition advance is to account for the lag time following spark ignition for combustion pressure to peak at 15 degrees AFTER TOP DEAD CENTER. A little fyi !
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