I picked that manifold up already built. It was a good design. I'd go with that again or something like Craig's (nopsi) turbo sedan, which I did alot of work on and tuned for him. Manifolds were nice and compact and worked well. This was the one I was referring to with the T25.




you should get the turbo carbon sealed for draw-through application, but personally I'd wait till the standard seals give up. The garrets would definitely be easier for that. Carbon seals may not be available for the other turbos.

the big issue with carby turbo tuning is ignition timing. standard distributor timing curve is all wrong. we used to remove the mech advance and run fixed timing. Its crude but its the simplest way of getting safe timing.