Going to try to make this short and sweet as possible. I bought a 03 gtx di with 240 original hours. Couldn’t get it to go past 50 mph. Had a compression test done and it read 85 psi. I just bought a new rebuilt top to bottom engine. Builder did compression test and it read 130 psi. I installed it last night and compression is still reading 85 psi. Can anybody tell what else can cause compression to drop or not build? Could it be a bad or broken hose, fuel or injector issue. Plz help cause this is extremely frustrating 
