i just rebuilt the motor on an indy 400 i got from a buddy, and i honed it out and put new cranck case seals, rings and all around gaskets, i ran a compresion test and it has 120 pounds in each cylinder. i know that thats pretty good compresion but on a rebuild shouldnt it be around 135? i was thinking and with these pistons it only takes one ring which is probably why it dosnt have more compresion than that, right?