Seat pressure and break in. Hyd flat tappets

About to crank my rebuilt 360. Flat tappet hyd setup. New cam and lifters. It’s primarily a Mopar engine shop. Cam is basically a 340 lift and duration with a little more ramp speed. I used the springs recommended by the cam manufacturer. I’m around 130 on the seat. I’m fairly nervous... as is the engine builder. Cam builder says no problem. It’s primed, Brad Penn break in oil, hoping it fires right away. Does this amount of seat pressure scare you guys or no?