Worth the trouble?

You have a heck of a bunch of mismatched stuff there. No compression with big cam and massive intake = real dog.With stock compression on the 360 and stock heads you should be using a little smaller cam and a dual plane intake.The Victor is a 3500 to 8000 rpm design. The carb is probably more than enough but not too large.As a starting point I would just switch to a performer RPM manifold and that should help a lot.If that dont get you where your going I would go with a slightly smaller cam with a little less duration. Duration equals rumpity rump but overlap also bleeds off cylinder pressure which is already low because of your pistons.I would say something in the 270 duration range.. That erson is a 2000 to 4000 rpm cam.If you do decide to take it apart use the KB 107 or a forged equivilant so you can 0 deck it and then you can get by with the erson cam and a performer rpm.