I have looked at that manifold several times and it would be cool. According to the data I have, it would be close on height with dual plenums, but would fit. I was actually considering something along these lines
Would fit, could use a manifold that I already have, and would be efi. I have used efi a lot and sequential injection is very nice when fine tuned. It would add to the cool factor, but would definitely lose the period correct look.
Sorry for the HUGE pic, couldn't get site to let me resize.