that's kind of how I've been leaning, since the Hughes cam was designed specifically for a stock stroke magnum engine, vs the other one being designed for ported and worked heads, and a stroker 360 at 408cu in.

the factory 5.9L from the trucks is exactly the same as the 300hp crate motor, they just replaced the EFI manifold for a carb manifold, and replaced the distributor, so that right there is a 50 hp jump from the "production" engines.

the 380hp engines were just different pistons for higher compression, and a different camshaft, again, stock magnum heads.

I figured with just a cam change, I'll fall somewhere in between.

...nowhere near as fast as the truck was with a 383 stroked to 438 with eddy heads and a TKO w/ 4.56 gears in the back, but...it should do alright for a street cruiser.