I threw together a 440 ci engine with supposedly ported 16 D-ports (didn't really look like much was done to them) and the 290-b6. My car is 5-600 pounds lighter but it ran 6.80 which is pretty close to 10.80's. I ran a victor on it and shifted it at 6000. The convertor stalled about 5000. You should easily get into the 11's with what you have.
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2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion
and 2015 IHRA Div 5 Mod champion
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