It was a stock bore '78 440 that they resealed and painted orange and put a composition head gasket on (assuming .039 fel pro?). Heads were stock 452s that they cut the guides and changed the springs on. Dulcich mentioned he measured the pistons .155 down.

Headers they mentioned were TTI, they are under chassis car type headers. They appear to be stepped, which I think would mean they have to be 2" to 2 1/8" unless TTI offers something else?

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street