460 cyclone or 429???

ok so the other day at the junkyard i ran into 2 engines, one was a 429 runnin in a pile of crown vicky, prolly like a 76... and the other was a merc runnin a 460 cyclone, i can only afford one of these engines right now at $220 each(everything left stuck to the engine is included minus tranny) which engine would be the better big block to rebuild?

thank you very much.... i've decided on the 460, cause this is a big boat thats gonna be gettin pushed around, so i better go with the engine that will move that weight best