SpeedMaster Heads for a 5.9 Magnum

rumblefish360 said
When moparoffical gets here, he’s going to rip those heads a new A-hole like he’s in rush to do so before the ICBM lands on his head.

The heads port out well, but as fast, OOTB…..
Ehhhhh, not so good.

Pittsburgh Racer had good luck with them.

I don't have a dog in the fight, I went with Edelbrock on my build.