Check out the thread I started on our trip to the dyno with my friends vette. YSI supercharged LS motor making 840 rear wheel HP wich should be about 1000 at the crank, mild cam and 600 trouble free miles with a dyno tune and several full throttle runs in the middle. He also did it on pump gas and not trying to squeeze every ounce of HP out of it. Its a safe tune and he drives it all the time.
https://lateral-g.net/forums/show...tomorrows+dyno