Suggestions for new design Aluminum Mopar SB clean slate (kind of) cylinder heads

gzig5 said
The Speedmaster and other imported Air Gap intake clones have both the LA and Magnum bolt pattern on the same intake. I'm not aware of it causing any problems. They furnish plugs for the holes you aren't using.
This will be a really nice option if you are able to make it happen. I'm not much of an expert but if you can get 290cfm out of the box with good part and machining quality and be less expensive than the Trick Flow option, you should sell a bunch. I'm assuming aluminum and not cast iron, correct?

Correct, aluminum only. plan is 290 ish, we have a prototype doing it. There are experts on here getting alot more out of SB mopar heads, but again the idea is to keep these mainstream, and not cross into exotic. My in house testing on the airgap imports is they scrub major HP. I'd like this to spawn a "bigger" single plane version of our 408, so needs to have LA bolts. THANK YOU for the feedback.