Yes, StageII. It will NOT work on a stock, GN1, or even TA aluminum headed engine. Edelbrock makes a decent carb intake for a stock headed engine. It needs alot of porting to flow any air, but if you want to run a blow-through, stock headed engine, it would work. (not real good, but it would work)
The stock 86-87 intake manifold woks pretty good despite it's rediculous port shape, and plenum design. Just shows us that boost covers lots of mistakes.:smile: