When you add a frontmount, that SMOG legality is history, correct? Couldnt you just use the Greddy Carb sticker and say its all legal though? I cant imagine they know the difference, or even using the Greddy sticker with a Drag kit. If its tuned right and installed smog-friendly (IE dumptube welded into the downpipe, cat intact, etc) you should be fine.

Im running a Drag kit and I love it. Fitment is solid, the manifold isnt the greatest design, but it isnt giving me any problems thus far since installing my exhaust (open downpipe was spike city). You may have to trim the webbing on the block a bit, and I had to hack up my radiator fan...other than that, its a solid kit. About as complete as they come aside from Greddy.