Missed on this combo?

Ironmike said
I assumed, or read that ProMaxx took over the Speedmaster name. Sure could be wrong. He has a set of bare ProMaxx on his shelf and said something about "not enough meat there to start on".

Mr Bloomer has been extremely pleasant and seemed really concerned on the phone. The Miller guy didn't seem so nice.....at least in his posts. Mabe nobody but him knows anything. I feel bad for Rod. Here he is stuck between the dude that designed the port, and the the guy who ported them. He's just trying to get a decent product out there.

Well whoever said that the heads aren't the problem after Bloomer was that upset about them sounds like an idiot.

Ironmike said
Both motors(heads) were ran on race mix and Sunoco pump. Both tried at several timing numbers. Both dyno sheets represent the best pulls.

I know TWICE I never thought about cranking PSI. I think I was so friggin flustered it just escaped me. As I said before, I run a very similar combo in car now with ported iron @ 10.75 to 1. My cranking psi is 188. Bet ya the new motor is real close.

It isn't anything but the heads, proven workhorse HP950, that's now back on the car. Done quite a few Super Victors now. They all run great. B3 rocker geometry correction. Believe me, I covered all the bases. At least I can't yet think of anything I forgot.

It's very simple physics. Edelbrocks on, 560 horsepower soft bottom end.
Same dyno same weather, BPE on 540 horsepower. And way down in torque compared to Edelbrock.

I certainly am no big name engine guy but seems pretty basic to me.

I would do a cranking compression and leak down test every time. Otherwise you don't know for sure what's going on. Might have some blowby. Or the rings didn't seat properly. Valves. Or any other number of problems. Something easily missed if you skip those basic tests.

Write them down on your list so next time you remember!