Hey guys finally getting to work on my 360. It is going to be a street engine, and am going low buck and mild, in order to get the car on the road. I have Magnum heads and have an eddy performer for an La engine. I would like to stick with an equivalent manifold or else drill my eddy for the heads. I know profesional products makes a manifold, but I'm not really thrilled about there knock off foreign garbage. Oh the other important part, I intend to stick with my Thermoquad carb. Thanks, Dan

Hi there. In January of this year, Hotroddave sent me a picture and discription of how he did his. He sent me a picture of the tool he made, but to save my sole I can't find it now. He used 2 welding clamps to hold it in position while he drilled the holes. You could send him a quick note and ask that he post it again. I did a search for his name and previous posts, but didn't come up with the right one. If I recall correctly, it was under $20 for materials if you had to buy them all outright to make the "jig."
Hope this helps.

The pic an directions are in the tech archives

Drilling the heads is a much better idea than the manifold, no odd ball spacers and visually more apealing.