Hope you can stand another "compression test results" thread

3 is the worst. Clean up the tune up and go run the snot out of it and the numbers should get closer together. I doubt you need a valve job. If you have soot on the plugs your tune up is killing power like a ****. I’d deal with that first.

The engine hasn't been putting out the power that I think it should. Also I got some "pull back" into the exhaust pipe at idle so this leads me to think I've got some sticky or burned valves. Before I put the plugs back in and run some seafoam through the engine, what are your thoughts on these numbers? Flat top pistons, 10:5-1 cr, .30 over. cam is supposed to be 490/490 262 duration.

I may have to take the car to a shop and have a complete valve job done.

Compression test was done with cold engine and no oil added in plug holes. I know my car idles rich as most of the plugs had soot on them.

Cylinder # 1 186
Cylinder # 2 183
Cylinder # 3 155
Cylinder # 4 195
Cylinder # 5 170
Cylinder # 6 180
Cylinder # 7 150
Cylinder # 8 180


What about #7...