An engine should be built around the cam. It controls what happens at what time. Personally I believe that if your life revolves around Saturday night you will be able to put up with a bit of roughness for the sake of a few extra horses.

An engine idling at 500rpm vs 1500rpm is not a really big issue is it? IF it is a bit doughy down low, then snick it back cog or two.

I've never had a problem with big cams on the street, then again I am happy to pour a bucket of hot water on the inlet manifold in the colder months due to a lack of chokes as well.

That said, I have sold stock cams to guys who couldn't handle their re-grinds.

Talk to and if possible drive the cars of different people with different cams.

Kelford make a nice bumpstick for the A-series. . .