HeroofNobody

question about compression results


I?m about to buy this sr20det that?s still in the car and his car has been sitting there for a few months because it got state reffed i was wondering would 130psi across all 4 cylinders be normal it?s a upgraded bottom end with thicker head gasket, arp studs and new seals we did a compression test after it idled for about 5 minutes and we also had to jump the car because battery was completely dead. i know you want around 150 psi but this head was rebuilt 500 miles ago just been sitting so could that be affecting the compression?