What he told me when i talked to him today. Been friends with his dad forever. He bought them cnc’ed, then did his magic. They go 380+.
How else would i know they have a custom 2.175 valve in them and have made 771. Wont find that anywhere.... lol
I figured you were in his ear. If you don't mind asking him if you get the chance, see if he will tell you how he came up with the 2.175 number, as in was it all he could stuff in there or was it what he decided gave him the area he wanted. Kinda be nice to know what size exhaust valve he used, but I'm sure he isn't saying much, plus I'm sure he may not want his stuff all over the interweb.
