I agree. His stuff seems way out there in my world. His lobe sep graph that figures lobe sep based on bore and valve size shows 100* lobe sep. for my combo. Never heard or seen anyone doing this. And now His lobe sep based on compression ratio goes totally out of the park the other way. Not looking to change cams right away, but I have been looking at the Ultradyne SLT cam grinds. They look to have a fairy quick ramp. Can these be run on the street without issue? Looking for a grind for 12.5:1 511 with 5000+stall and at 3380# race weight. The current ultradyne I'm looking at is very similar to what Dwayne spec'd and i'm using. the ultradyne has faster ramps and on a 108LDA vs my 110.