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with only 5 ribs I'm surprised your not getting slippage? or are you not running a lot of boost?

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I will check the dyno sheet in the morning for boost but it made 1,017 rear wheel horse-power and run 9:38-9:42 in the 1/4 mile with 3:42 gears(True Street 9 sec. street car) at SGMSP through the exhaust on DOT Drag Radials leaving @ 2500 RPM 6-speed manual trans with a good bit of wheel spin.I drove the car 135+ miles one way and the only change I made was lower the rear tire air pressure from 28-18 lbs.I now run the rear tires @ 27lbs on the road & 17lbs if I want to make a hit.The engine does have quite a few upgrades.The car looks like a stock Corvette.

PS I was more interested in the Horse-Power than boost!