I need to rebuild my engine, I've have denation problem under low boost say under 10 psi and my scan master would pick up 4-8 deg's for knock. Well I did a cylinder leak down test today on two cylinders the back one on the right side was fine but the front cylinder was not I could hear air leaking out and on the LH cover air was blowing out where the oil cap would be. I was told it sounds like I need rings. It smokes when I start it and pretty much keeps on smoking. Should I get the block honed or rebored? Where can I get a great set of piston rings for these cars? Can reuse my pistons or do I need to get some new ones? Any advice on what to do and what to get would be great. Thanks, Jason