Hi, I’m amazed at how many engines are for sale but no compression numbers. I consider that a boat anchor. It is so easy to obtain engine numbers . Helping younger guys with their engines they bought . The stories they tell me the former owner said are. Ran good when run 5 years ago,ran good when I had it but I’m pulling it out to put different engine in. Redone by previous owner but no paperwork. Writing this not to gripe but to inform the youger people out there don’t buy engines without compression numbers. This is still no full guarantee but it sure is a good start.