I would like to hear more elaboration on this particular statement ^^. The longer angles like the Speedmaster's come with aren't necessarily a bad thing for the Street guys?
It depends on the angles mostly. And the port/valve angles. Low port heads take a much different valve job (IMO) than a raised port does.
Fo example, I never use more than 4 angles on a SBM head and the bottom cut is pretty wide. I don’t have the cutter in front of me so I can’t tell you how long it is but it’s at least .100 wide.