Dan: Thank you for taking the lead and dedicating the time, effort and energy to testing so many induction variables. This round alone was super valuable for me, and I am sure as you test more, equally valuables to others on this forum and any other proud 351c owners.
All in all, it sounds like the widely available and cost effective Air Gap RPM 2v intake with standard 4 hole spacer was a pretty good setup for the 4v heads. Good to know, as I am currently running, and old performer (but with a 4 hole spacer) I may consider investing in an upgrade!
Cheers JC71
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