of fuel out of the cylinder after they started it and heard a pop and rattle. Car idles fairly smooth, at 1800 rpms theres a rod knock sound which they first heard when just backing out of the garage right after the injector install due to the fumes and when they heard it. I warmed it up, did the compression check, listened to it, and got the numbers above. It held the 90 psi for almost 5-10 minutes and was down to ~80 after 15-20 minutes. I don't have a leak down tester at this point. We're just trying to assess best and worst case financial scenarios since they just bought the car and this was very unexcpect and unfortunate.
