Speedmaster sale. It started

Lol, same here...not sure what the port difference is magnum vs La? Maybe @pittsburghracer or @70aarcuda will chime in.
BTW these are the ones I'm thinking, but are sold out:BangHead:

Mopar Chrysler SB 318 340 360 190cc 68cc Full CNC Aluminum Bare Cylinder Head

I wouldn't know how to tell the difference, what am I looking for?