And with that done I turned to the lower plenum, aka intake manifold. But I soon wished I'd made a mask using the intake manifold gasket when I painted the heads as I had a lot of paint I had to remove in order to get down to bare metal. That took a long time to clean up, but when I done it was time to put the plenum on.
I'd seen Scott's pic on his FB page about using RTV on the gasket, and here's how he does it, with the caption saying "Note sparing use of RTV to avoid oil creep from the valley into the ports and above." So that's what I did on the inside of the gasket. But I put a similar bead of RTV around the water ports on the other side of the gasket.
That took quite a bit of time, but with it done I made a large bead of RTV across the china walls and, with the studs in the corners, I lowered the plenum on. Then I installed the bolts and nuts snug to pull the plenum down into the RTV and I'll leave it over night and then torque things down in the morn. But, here's what it is starting to look like:
Man, that’s looking good!