[lazaris]

"wouldn't exhaust valve durability become a problem? We've all heard of how an exhaust gasket leak can cause burned valves.

I wasn't missing the big overlap deal. It's just that most TR cams in use are designed with zero or negative overlap numbers."

I think exh valve durability is already a concern. Thats why I prefer Inconel on the exh side as does Manley in blown applications.

Most TR cams may have less overlap but not the faster ones that usually use a distributor. Maybe thats why they see the EGT difference.