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Well we just recently finished installing a new GM TBI motor after adding a roller cam and Edelbrock's Multi-Point Fuel Injection system, with a hi-flo cat and 3" dual cat back exhaust in our 88 GMC 3/4 ton 4X4 and I gotta say WOW!!!!! If your looking for perfomance and response this is a winning system!! We had to delete a few intake manifold brackets 1 for AC on drivers side that went to center of intake passenger side, a rear brace for idler pulley, and the rear brace for alternator that runs to mid point on drivers side on intake. No noticeable give or flex was noticed by removing these. Due to ours being a 1988 using the Edelbrock system we had to install a 90 degree on fuel rail fitting to install the front fuel line, other than these minor mods not mentioned in their instructions its really a very straight forward swap and the performance gains are EXTREMELY noticable THROUGHOUT the entire operating range I felt. We haven't had a chance to get it on a dyno yet but there is a definet large gain.
GMCPaul