i hate the 350, the LS motor is king. just throw that in his face. i have a friend with a 350 irocz he swears up and down the 350 is the best. after working on LS motors now for 3 years i dont even feel like a 350 is worthy of my touch
350 isn't that great, you have to go 383 if you want any power out of a SBC, but thats where the BBC takes over...
LS motors are just that much more expensive to build hence people still preferring the old school SBC.