[nitrorocket]

No, what he is saying is that you will only need lets say 5 lbs of boost to make 1000 hp on a 540 versus about 18-20 lbs on a 350.

Real basic...Hp requires air/fuel. A turbo is rated by the amount of air it flows. A pair of tine 60-1 hi-fi's will make 1100 hp on a 347" at 21 psi, and 1100 on a 454" at 17 psi. So regardless of boost, they are only capabale of flowing a certain amount of air regardless of motor size. Just need to make sure they have properly matched Exhaust housing to keep the turbine speed in the sweet spot.

To me is does not make sense to do a high dollar big inch motor to only make 1000 hp.

An ls1 is the best engine ever made. Look at my factory headed tiny 347"!!