318 Port match heads to Performer RPM Intake

just ok
the Whiplash is the best of those kind of cams, Comps thumper second, everyone else SOL
but the long exhaust on the good Whiplash intake lobe
WTF
too much overlap and your expansion ration goes all to hell
Why?
AJ knows
Not a bad cam but I'm sure there are better grinds.