Sure you in theory you could run more boost with the lower compression ratio, but the LS motor also takes more boost to make the same power as a GSR motor.

I guess if you really want to debate cam specs and flow numbers that might be sort of interesting, but I'll just stick to dynos.

GSR @ 7 psi (red line)


LS @ 7 psi


The Drag and Rev Hard kits use nearly identical T3/TO4E turbos.

Why would you want to run more boost on an LS motor when all that does is create more heat and more stress, when the GSR motor will make more power?

The stock internals are only good up to power levels approaching 300 hp at the wheels anyway, and then you're talking built motors where once again the VTEC motor is going to be at an advantage.