Review on HFS Petrol Cylinder Compression Automotive by James Stevenson

I've wanted one of these for a long time. I recently woke up the untold story of SB Ford after 15 years of sleep. I just woke him up. I don't know what I was thinking. It was necessary to unscrew the candles and soak the cylinders for a day or two. naturally. I used this tester and it showed me that I averaged 125 psi across all cylinders. I agree with that. Good information. Easy to use and store. It paid for itself easily the first time. Now my friends want to borrow the other hand on the way to handling to diagnose.