60's caddy ?

how much psi do i need to get this big ass boat off the ground i tried my shop comp but it does nothing and its up to 125psi

what psi switch should i get for my tanks ? 145-175 ?

i had the same problem with my 63 rivi!! U need to hook the compressor up and let that fill ur tank, then shell move just fine. I had a shop comp hooked to my tank at first and that was my problem as well, so finished hookin up the system and never had a problem with that again, my pressure switch is a 175!