535 supercharged first time start up?

Here is a update so I got a new roller cam and lifters, had to change the valve springs to get a 235pound seat pressure. Replaced the springs. Went to install the new roller cam and it went all the way in except for the last cam bearing...so now I need to have the cam polished on the last bearing jurnal to match the old one...also had to get a different timing gear set with a cam button...cam guy said to use 0.15 pre load on the measured push rods.... machine shop said to use 0.30-0.35 pre load...thoughts?