Whats the best way to flush with a garden hose..inlet and outlet locations? Are there any plugs on the bottom of the block I need to take out? I was told by a few people to go pick up some Blue Devil flush and run it through a few times. Im also having a hard time getting to that back bolt on the passenger side valve cover. Any advice?

Does any one have a good place to get a new valley pan gasket? I see people saying just to RTV it, but others have said if I do that, chances are the valley pan is going to get smashed up if I ever need to try and take it out again.