Sizing carburetor

Some of you guys need to learn to read that cam card,
on the left is advertised
on the right is at .020 tappet.

020 tappet at 1.5 ratio, is .030 valve.
and .300 x 1.5=.450
and .030 plus .450 = .480
case closed.


Maybe you need to take your own advice. We are talking about using less exhaust timing and lift.

I can see nothing good about that. As displacement goes up and the valve size (exhaust valve) stays the same or gets smaller you need to start adding time/area to cam timing.

As I've said, single pattern cams have a place but not on these big engines being built today. I had to change my thinking on that.

And a reverse pattern cam? I'll pass.