With a little careful filing, could the TB base stud holes be elongated enough to accept the intake manifold studs and keep the integrity of the TB base intact?
A simpler method would be to remove the studs from the manifold, drill and tap it for about a 5/8" thread, and plug the holes. Then use the TB gasket as a template and install studs the proper diameter, at the correct spacing. It's the same procedure that works well when installing 216-size carburetors on dual carb manifolds set up for 235 bolt pattern carbs. That way the engine is only slightly over-carbureted.
Jerry
