I'm hoping someone can shed some light on a littel problem I have, I have a 87 454, number 3 cylinder has 90 pounds of compression and number 5 has 60 pounds. I squirted some oil in the cylinders and ran a check again, Number 3 jumped up to about 120 and held there and number 5 jumped up to about to just over 90. I know this would tell me I have a ring problem but it the cylinder was warped would it hold a steady amount of preasure or would it bleed down ? The motor was free and I don't know if I want to deal with a big rebuild job compared to just doing a ring job. Any help would be appreciated.