Yeah i know that compression should be take engine hot but i've look to buy a used engine that been remove and stored for about 6 months. I got compression 70-70-75 on both rotors. Anybody know if theses numbers would be higher or lower when engine hot like it should be?

Theses numbers are Ok or too low?

 

You would have a very difficult time getting the car started with those numbers. IF the car was warm the numbers should be lower. Either way it is time for a rebuild with those numbers.