Re: L-100 cam in a 221
Yoyo, I've built and run numerous 221's, including the L100 and Fenton twin as you're proposing. I agree with Ron; the L100 is not a good cam in this application. Try an Isky 88 cam along with your other mods, take the lip off the flywheel, use a 9" clutch, and yes, port the block. The idea is to lighten everything as much as possible and allow the thing to breathe. Enjoy...
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