Ditto on the aluminum flywheel comments. We ran one for several years on a 1/4 mile dirt tracker in California with 327 and 350 engines. RPM in the turns was 3K-3500, and at the end of the straightaway we were turning 7K or so. The flywheel allowed us to "stretch the straightaway"- - - -getting on the throttle sooner coming off the turns, and driving deeper into the turn before lifting off the gas. The lightweight wheel let the engine accelerate, and also slow down quicker. The "idle" speed on those engines was anywhere from 1500 to 2200, depending on which camshaft we ran. Low end torque was nonexistent. People have offered me big bucks to build a street engine like that, and I've always refused. Doing race engine stuff on a street machine is beyond stupid, and I didn't need the gripes, complaints, and bad reputation a disgruntled customer would spread over the grapevine, even though I would have done exactly what he asked for!
Jerry
