That is about the fifth M.W. intake I've seen that mod done to, removed the center divider
I've had several opportunities to buy ones like that, I passed on both
On your deal with both size carbs I would run the bigger 3705 1964 carbs.
I have several 4 hole carb. inserts that will fit into a manifold like that, I've wanted to do some back to back testing on them but no luck yet
I did a motor for a local guy who has a manifold like that, it doesn't run as good as he wants it to (do they ever
) but he started off with the wrong carbs, camshaft and exhaust size so there is a lot of changes needed to make that rascal haul tail like it should
Have you looked at the new Trick flow # 270 M.W. size heads yet? If not take a look at them
I've owned and race several 1963 plymouth M.W. cars in NHRA stock as well as bracket racing