Help with a/c PLEASE

[jhrusk]

I have a question concerning a/c pressure on a 1985 gmc.This is what I have done.new compressor,new dryer,new orifice tube,new o-rings.I flushed evaporator and condenser and installed adapter fittings for 134a.I vacuumed system for an hour and had everything working well.I noticed the next day it was cycling a lot so I looked into it and found the old high side schrader valve was leaking.I got it replaced and vacuumed and re-charged system.It is a fair amount cooler today maybe 55-60 degrees outside and it seems to cycle more frequently, on the low side compressor cuts off@ 27psi and cuts on @ 49psi.High side cuts off @ 125psi and cuts on at 75 psi.I am no a/c expert by any means so I really dont know if I am in the ballpark,and as cool as it is today you normally would not run a/c anyway.Any thoughts or suggestions on this.Thanks in advance.