(copied this from the other thread)
Hey Chuck, I got 100% of the idea from Steve Rupp's blue '69:
www.z069.us
My exhaust guy built it with 3.5" tubing and then I had it ceramic coated. We also extended the MAF and air temp sensor wires and ran them underneath to hide them.
Also, on page 34 of the new Chevy High Performance, I noticed a new intake setup from K&N specific to this application. You might want to check it out.