Brodix B1BA heads...

Krooser said

IIRC the "spec" heads flow 280 on the intake...good for 650HP? That's what most of the dirt track guys claim.

Click to expand...

Sounds very optimistic.
Takes a lot of squeeze and good port work for a W5 to get there. Brodix is a good bit less head than that.
Guess it depends on the bench.
Show me that head going 135 in a 3300 pound car and i will start to believe...lol