So recently i did a compression test on my 05 160k mile srt and all my numbers seemed low. I got a little under 120 across the board. The car smokes a little in the start up but once it is in operating temp there is no smoke out the exhaust. Bought off a friend who was beating the shit out of it and I’m trying to save it . Car still drives strong but has a weird idle. (Not going to drive it till it’s 100%)Am I to be worried and where should be the places I should be looking?