I have a king cobra with a billet flywheel and I haven't had any problems with powershifting mine or launching. I don't run slicks but I do run drag radials. I have a buddy with a 347 and he launches at 5000 and powershifts with his centerforce and doesn't have any problems either.
We build these cars to race them, and run as low of E.T.'s as we can. We build them so we can drive them hard, and if I can't powershift mine, hell I might as well just sell it. Don't powershift it, HA!
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