Ivan,
Stick with your 292 if it's what
you want to do. For obvious reasons a 350 will always be a more powerful engine, and cost you less money to get good power out of. But do your 292 just because it's fun and different.
-magic mike-
P.S. My next engine will most likely be a ready to drop in 330 HP Goodwrench 350 with Vortec heads.
But don't tell anybody