I think my motor is done
Well I just got my jwt ecu back today. It was programmed for and n60, 370s, de comp, 3 bar fuel. Just drove it around to make sure it was running good before bolting the t25 on. It ran great. But then I had to run some errands. When I went to go home, the car didnt want to start and felt like it was on 3 cylinders at idle. Driving felt kind of normal although it was backfiring like a mo fo. Got home and pulled the plugs. #4 black. Swapped plugs and still nothing. I know it had fuel cuz it was all over the plug and I know it had spark cuz I pulled the boot off and I could hear it arcing. Also when I pulled 4, there was no change in the way the engine idled. Got out the comp tester and 1,2, and 3 were all around 170-175. The best 4 could muster was 150. While I was swapping the plugs, I noticed the vacuum line on the fpr was off. Could this have been the demise of my motor? Tell me your thoughts. All I can hope for is that the head gasket went.