Good deal, thank you. I made a new restrictor and installed it yesterday. I did notice when I had it apart that the HLA's on the exhaust side of 3 and 5 were taller than the other 10. Ended up bleeding all of the HLA's and firing it back up. The bad news is that the miss is still there. You can hear a "puff" in the exhaust so I'm afraid that the hanging HLA's may have burned a couple of exhaust valves. By the way, the cam and followers showed no signs of extra wear or scoring. Luckily, there was a seller on Ebay that had two NOS GM valves # 9786805 so I've got those coming. What do I need to look for after tearing it apart to know if I need to take it to a machine shop or if I'm able to just lap in the new valves and call it a day.
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