I used to run the ultradyne 231-239 @.050 hydraulic with rhoads lifters and ran 11's with that,that was a great cam.A friend of mine runs a 400 gto and going from 4.10 gears to 3.73 gears slowed him down on the track.If your going to run a big cam in a 400,you need gears and a converter,especially in a heavy car.
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