Originally Posted by DeliveryValve

Army, that's probably helpful if someone does their own grinding. But for companies like Colt or Delta, they would rather have the cam on hand and profile it themselves. In fact Geoff at Colt Cams told me he has the stock 617 profiles already in his database getting it from doing work on them in the 1980s. The performance thing is really a matter of grinding the cam and trying it out with the current setup of a particular engine, then reworking it if necessary. Hence his willingness to work out a grind that would be suitable.


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