Had a bud with one. We put a set of 352 heads on his 390 and it was a screamer. Had a c6 trans and a posi in the rear,it did some large smoke screams when wanted.
As for small block Ford engines,to me there is none better when it is wound up. Put a ignition block switch to cut spark when shifting and watch the flames come out when you are doing fast runs at the drag strip.