Well I have the answer to my Type 4 ported head and matching intake manifold question. The venders for the heads do offer the welded up and port matched manifolds just as done with the type 1 engines. They for some reason don't list them on their websites.
The snowball keeps on a rolling. My engine builder just ordered a set of heads that will be built with 48/38 valve sizes and stage 2 Porting with "D" shaped intake ports and manifolds that will be port matched. This will put the engine back 3-4 weeks on the finish date but my experience with delayed gratification has paid off big on other projects, my Suby Speedster is an example. The wait was worth it.
