60' time and 4 hole 1" spacer

elevensies said
iv just got a 2'' single hole, which im going to add to the 1'' i have (so 3''total) on a M1 hi rise air gap manifold

my guessing it will bog off the line, anyone tried this?

Haven't tried it but I'd guess you'd need a very large engine to use that much plenum volume. How does it do with the 2" spacer? What size engine?