StealthZ

Been lurking for a bit, but now I am finally in the position to get some wk done to the car. I am very interested in the ITB conversion for my (RB25) RB30DET. Is there any (signiciant) difference in ITB designs throughout the RB26 year models that I should be looking for? I have done a search, but came up empty handed. I already have the Greddy intake with the Q45 TB, but on my '77 280Z that manifold angles out too far and for the most part hits the fender. The GTR manifold would pretty much perfectly line up with the openings in the rad support to the FMIC. Plus the extra throttle response wouldn't suck either...