72 scamp slant 6 efi turbo

I don't see turning the boost up past 8psi don't want to take that chance with 9:1CR and cast pistons.would like to drive it and tune it more but been waiting since march for AMD to get FT bumpers in. just finished looking through the data from my drive to gas station and got 5psi at 2000RPM and 38% throttle now to adjust kick down cable