You are correct about the tall ones not fitting. The guy who built my engine put a CHEAP set of fabricated aluminum valve covers (made in china) on and they fit under the booster, but they are already warped a little and hit a few rollers.
I have to use slanted vc's unless a short set would clear the rollers?

??
Do they make a GOOD set of fabricated aluminum valve covers or should I stay away from the fabricated ones and stick with cast?
A buddy of mine let me borrow one of his vc's off his 468 and it fit perfect. It was a cast aluminum slanted vc but did not have baffles (he races it). Summit sells the same ones but they do not have baffles either.
I have a place who could tack weld some baffles in, but I'm not sure if that would distort the vc in anyway even though it would only be very minimal welding.