Wow its really hotting up in Speedmaster land!
So the port is 'too big' in the bowl area, and the pinch is kinda OK?
The large ski ramp just before the bowl looks bad to me, (head bolt kink) so I'm getting rid.
(Not going crazy just flattening it out, as its MASSIVE)!
I'm trying to contact the guys at the SM Rialto machine shop.
Maybe they can do a AAR/TA kinda Pushrod redrill, so we can go pinch point crazy!
Then the guys at PRW can get some AAR/TA offset rockers made too.
A 1-1/8'' x 2-1/4'' straight port (like Dulcich Eddy) will solve the SM head issues once and for all???
Widen the pushrod pinch to ''slow the flow''...
I just re-watched the MT Dulcich video and it made me laugh again, BAM 100 hp gain. (92 actually)