So I bought that intake last year. It weighs 40 lbs! Anyway, it now weighs 28.5 from the diet I gave it. And I will be using one of the water crossovers from one of the 2 aluminum intakes I have.
I have not done anything to the runners or plenum, would there be any advantage to giving the secondary side an "air gap"? Any advantage to making the circular holes under the carb oval shaped like you did on the iron one? Should I use a spacer, if so should I use a 4 hole spacer or just a 1" open?