I'm wondering the same.
I just picked up a 360/380hp crate engine. 3400 pound car, 3.23 gears, 27" tall tires and a 904 based lockup. 230 ish duration at .050 I think
1 3/4" Super Comps, 650 AVS2, and an irresponsible driver.

I drive mostly highway, I like to drive at a brisk pace, but should I change the converter? It's a lockup trans and probably not a lot of options...? Factory 318 4 barrel engine in it now. 155hp?
I could swap cams in the 360/380 if necessary but I would rather not!!!