340x vs. Edelbrock aluminum heads.
I recently gathered what I consider reliable flow information from reputable sources on 15 Mopar Cylinder heads.
We then had an independant company wih a good flow bench test our new FBO/EQ Magnum head right out of the box and our new CnC ported FBO/EQ Head.
I'm not ready to release the full data and ranking of head flow at .500-.550 (which is where most of you guys are likely to run your cams at)
I will tell you that the W-2 Head was the best, Eddy "Ready to Run" (Now there's joke for Leno) ranked 8th. The FBO/EQ out of the box was 9th and only 4 CFM behind the Eddy and did it with a 1.94 valve. Considering the price tag of $439.00 as compared to a SET of the Eddy's that's one hell of a deal and of course the Magnums are designed to run 100,000+ miles, try and get that kind of reliability out of an Eddy.
The CnC Ported FBO/EQ Magnums with the As Cast LA Intake Bolt pattern (not a Re-Drill) tied for 2nd with the Fully Ported Race Ready 915J 2.02 valve heads as noted in a very good tech article posted over on Moparts. Still with only a 1.94 valve.
The full report will be published soon by EQ Advertising and Product Development staff. I'll put up a link as soon as it's published.