Magnum intake drilling plate project

Good idea with the weights on the intake I'll just throw a couple 45s on top and that should be good for me to drill the first few. I just got back from home depot I was actually able to find some brass or maybe copper threaded pipe in 1/8" size that is just small enough for a few threads to screw into the intake bolt holes and the inner part is a good size for the size F drill bit so it doesn't wiggle much. I found a kit it's a size F bit and 5/16" tap for the magnum sized bolts.

Yea I'm drilling the la style trick flow heads for the magnum intake not the other way around. Drilling a magnum style intake for la style heads wouldn't come out too nice it would look sloppy compared to when people drill la manifolds for magnums those come out better. That's the first I've seen of that edelbrock manifold if the ac bracket wasn't in the way that would be a great option.