318 vs. 360?

I run a 360 that literaly has all the go parts from my 318, cam intake headers, everything else is stock, pistons heads etc, I run the 360 in my dart with a 904 auto that has the lower 2 gears changed for a little better gearing, ran the 318 in a 73 B body that had an overdrive manual tranny, I ran a 3:23 sure grip (same rear in both cars) used 28" tall drag slicks on the 73 B body and I use 24" tall street tires in the rear of the dart, the B body weighed in at more than 3900lbs and had the exhaust off from headers back, the Dart a meager 3150 with full exhaust out the back (2 1/4" dual exhaust). The B body ran a 15.88 in the quarter using ONLY 1st and 2nd gear and slipping the clutch hard off the line (very poor gearing for a heavy weight like that B body), I have run a best 15.34 in the quarter with the Dart which gets piss poor traction AT BEST (seems the gearing and tires I have this settup with allows for HUGE tire shredding :-) ) I run a STOCK slant six torque converter behind the 360 and I ran it in Drive (no tach and I didn't want to lunch the engine first time out at the trac) the cam only makes power from about 3000rpm to 6000rpm, where it's actually shifting itself at is roughly 4000 rpm, I haven't even tweaked or tuned on this yet and it is still "straight outa the box" so to speak. I see potential to be mid 14's NO PROBLEM. You tell me, which is the greater power producing engine? No replacement for DISPLACEMENT all other things being equal.