I had that exact setup run for about 9 mo. or so. Drilled a hole in the second box, just before the TB. Had no problem at all. The clutch actually slipped so bad in first gear once, I had a backfire. Thought for sure I grenaded the MAF, but, it was fine! I ran a 75hp wet system with no extra mods. Car went 13.9 in the 1/4. Hope this is the info you were looking for.