well, figure this...i know of someone who has an srt10 ram with a turbo kit on it. right after installation, it was making some 650Whp at very low levels of boost...i know that the viper 8.3L has a CR of 9.6:1, so i assume that the truck motor is the same, and he was running something like 6psi to make that 650Whp...i believe that he turned the boost up a bit when he installed an alcohol injection kit, and got up over 700Whp...he had a video on streetfire, but their site isnt working for me...[:@]

i seem to recall that with the alcohol injection, he was running 8psi, on a daily driven 9.6:1 engine, and didnt have any issues, so i would think that the 5.7 hemi would accept the same amount of boost, provided the same upgrades, but that is also assuming that the components of the 5.7 are of the same high quality as the 8.3L...