What affects power more in a camshaft....high lift or longer duration?

What affects power more in a camshaft....high lift or longer duration?

roller motor is gonna stomp guts on the old mill.

The '76 360 This is a standard bore mill with #308 heads and Fel Pro gaskets, maybe 8 to 1 compression. It has a MP 280/474 hydraulic cam, 1.5 rocker arms, a Weiand intake and Holley 750.
A friend wanted to unload a 360 he had....1990 roller cam engine with 2 blown head gaskets. I went through it...new pistons, rings and gaskets but I retained the cam since it is a Hughes with 218/228 degrees of duration and .544 lift. It has an Air Gap intake and will use the same Holley carburetor but with 1 5/8" Dougs headers.

Comparing the two, the '76 has 1.5 points LESS compression, the same style heads, a better intake and exhaust, more duration but less lift.

the hughes cam is actually 218/228 @ .050 while the advertised duration is more like 268/278, so it got quite a bit more lift than the 280/474 MP unit.

the air gap is also a better manifold. if it gives up anything to the wieand, it might be 5~7 hp/tq under 3K

[edited for clarity]