4spdragtop asked: "So did you have your dual quad manifold drilled for magnum heads?"
I have a new set of EQ Magnum heads that are drilled for LA intake manifolds. In the future- I will build a carbureted 360 to replace the OBD1 318 that's in the truck currently and the 360 will use the EQ heads. Modern EQ heads are not the same as they were 10 years ago- they currently are not a performance improvement over stock Magnum heads. I was fully aware of this, and I am cleaning up and mildly porting the Chinese cast EQ heads I have. FYI these EQ heads I bought from Vegas parts and cores were checked out by a local machine shop. Everything checked out great. Valve guide clearances and the valve job all good. I had the guides cut down to allow a decent street camshaft.​