Bolt is in. I put a more aggresive cam in last year 218/224 at duration 0.05 lobe seperation 110. Since then when I get on it I had blow by. I used my other valve cover(not the one with the pcv valve) and used a breather cap with a fitting for a tube to vent my fumes down my carb. It works great. Took it out again tonight after checking all my gaskets to see if they were sealed properly. Ran it up to 70 and then cruised at 60 for about 15 minutes. Pulled it in my garage and had no oil leak. The night before I had pushed it hard to around 90-95 and now am wondering if my cam is causing to much pressure, but even though that might be I cannot find the leak.