This is a Home Depot job without a doubt.I tried acouple a things before I reached this setup but we won't go there.I used a chrome "P" trap like you use under the sink.It's 1- 1/2" 180degree with the locknuts left on both ends. I used a 2" to 1 1/2" coupler for plumbing. The 2" end hooks up the the back of the carb and the 1 1/2" end hooks to the short side of the p trap.Everything is held down with hose clamps.The K&N filters hook over the long end of the trap.I tried 142.5 main jets but it was too much.I dropped back to 135 mains and it screams. I guess I'm about 4 turns out on my air screw mixture. I had to cut my airbox back for the setup to fit. Modified my side pieces and put a small filter on the hose for my oil breather.This is a cheap man's freak.
