I found a Offenhauser Dual Port intake on e-bag for a thermoquad and was wondering if those are better than a stock cast iron intake, other than the weight savings. Bob
I had a couple of friends who used Offy Dual-Port intakes. One was on a 318 Challenger with a Thermoquad & the other was on an Olds Cutlass 350 with a Quadrajet. I wasn't very impressed with the way either of them worked.