"They're pretty heavy too." HAH! They are like lugging around an iron FE Ford intake manifold!
Porting them I've found out you need to be careful with the #2/#7 exhaust port as the wall is somewhat thin in one spot. And the pushrod hole was drilled real close to the port wall in some ports, so the port wall was not even .060" thick sometimes.
I like the LAX head because it still has the un-machined stud mount rocker pedestals and you can set the rocker stud anywhere you want (i.e. make it a Magnum head).
We were getting almost 310 cfm but the cross sectional area at the pushrod pinch chokes the higher rpm power potential in a stroker unless you plug the pushrod hole and move it over so you can open the pinch. Because of that we found the pump gas 424/360 running out of air and stalling at 620 or so horsepower @ 6,300 rpm.
Early in the production run (2010) you could buy the LAX with no intake pushrod hole and punch them in there where ever you wished.
