Engine tweeking & tuning questions, About the only ones I haven't asked... Options

[ahdoman]

It's been awhile now since I got my teener and I think I've begun to really figure this stuff out thanks to you 914World adicts. But, I do have a couple of inquisitions for the engine tweaker guru's...
1) What is the relationship (if there is one) between engine heat and timing?
2) What is the realtionship between A/F mixture and engine heat?
3) As oil temp goes up does oil pressure decrease?

And finally...I finally got myself a real digital timing gun so I can truly check advance. I am running an 009 distro (I know Mallory or 050 would be better but no $ right now. I spent it all on my timing gun) and am trying to figure out just how bad it is. If someone else has a gun with adjustable advance would you be kind enough to tell me what your advance degrees are at;
1000 RPM
1500 RPM
2500 RPM
Why do this? Because I don't think my distro is properly advancing and I need to see how far off it is. Hopefully this will help me find it's "happy place".