totally agreeThat "conventional" word is a royal pain in the ass. I think that the 15* Victor is conventional because it is still an inline head, I also think the Chevy heads listed above are too. As stated above, the "factory" valve angle heads generally get a break over the other "conventional" heads and they should. The twisted wedge, Yates and SB2's are not conventional.
. . . just my 2 cents
I know, same here.Most sanctioning bodies around here give Twisted Wedge heads a pass because they aren't any better than a top shelf inline head. Regarding Fords, the Yates/Cleveland type stuff is what is usually considered an "unconventional" head.
i agree on the valve angle change adding or subtracting weight but this head being an inline head makes it a conventional head.....IMO