Tunnel ram or no tunnel ram...

Here is my old 470. 2/10s faster with it over a M1 and a 1050 dominator. Standard port Stage 6 heads which flowed around 320 and 240. Best run was 10.1 with T ram. 9.03 with nos. Kim
M1 single plane?
B block correct?
Who’s Tunnel Ram?
RB Tunnel Ram?
Tell me (us) about the twin carbs.

Thanks Kim.