I have over 20K on a .491" BOP composite gear attached to an un-dressed hyd roller camshaft (billet steel gear).
Only reason I recently changed is that I went to a Pro Billet dizzy and needed the .5" gear.
Only very minor wear on the composite gear. I wouldn't ne afraid of running it on a HFT cam.
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-Jason
1969 Pontiac Firebird
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