Does my dad speak the truth?
He's dead wrong on 2,3,4
He's at least half right on 5 (you obviously will need a new Y for LTs). Not sure about shorties bolting right up to existing exhaust without some modification. I doubt it.
As someone pointed out, he's working off old school rules, although I don't think shorties EVER made as much power as an LTs.
The Best V8 Stories One Small Block at Time

