Small block strength

If your talking building on a budget then the X or R block are out they're going for $2800.00 new..there is nothing wrong with a seasoned late '60 or early '70's 340 or early '70's 360 blocks,plenty of guys running the snot out of these pushing some serious power at the track.Don't get me wrong if my budget allowed it i'd buy a X or an R block in a minute,but i don't have a "moneytree" an you can still find 340 blocks for $400-$500 and 360's even cheaper put the money saved into other components...