My 197s have not been flowed just raced.The engine is 9-1 comp 455 and in a 69GTO,11.27 @116mph.Dan Whittmore ported them and thought they were in the 260 range,maybe 265.Its tough to get more out of them as the valves are shrouded as compaired to a RAIV.
I should be able to get the car in the 11.15 to 11.0 range this season.Maybe high 10s.
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