[A930Rocket]

Thanks guys. Good idea on tapping the valve. And yes it's the exhaust valves on 3 and 5. I just picked up a can of BG fuel cleaner, in addition to the Techron cleaner. I'll check the valves, run the cleaner and try a leakdown test. I have a small compressor and I'm not sure if it up to the job and if not I'll take it back or to another shop. After that, I'll have to see what the options are...

Thinking back, I may only have 1000 miles on the engine since the rebuild with most up front and short hops to the store a few times since.