Anybody have pics of 426 Max Wedge Stage ll and lll heads

There were at least 3 “runs” of the 518-M’s.
The ports got mildly revamped each time, and it seems they got a little better each time.
I’ve had the version with the 2.08 intake valves, from the various runs, flow from the low 260’s up to about 280(@.700 lift).

On my bench stock 906’s are mid-220’s to mid-230’s.

Original 286’s are in the 250 range at .500 lift, but will be up in the 270 area at .700.

Edit, I see the first set I had here, that were from the early run(freeze plugs in end of head).......
They got 2.19” intake valves installed.
With just the seats and bowls cut, no blending the intakes only flowed 257@.700.
The early heads had the chambers pulled in near the intake valves, so the bigger valve wasn’t much(any??) benefit until you opened up the chamber.

It was a fair amount of porting to get those to 300+.