I do know that Billy at Comp Cams was working on a dual-pattern cam with 256 intake duration, 260 or 262 exhaust. Tom Langdon has a dual pattern cam available, but don't have the specs. I think the idea behind both cams is to close the intakes earlier to build DYNAMIC COMPRESSION and help the crappy exhaust port with more duration, like Mcguirk did.
Do you know if Comp Cams is regrinding or do they have new cores? Delta Cams regrinds a dual pattern,I believe they were or are doing Langdon's cams.
