Here is a link to a BB about mechanical injection. I've been a member there for a bout 5 years an it has been extreemly educational. There is a membership fee to to get to the really good stuff and the guy that runs the board has an excellent booklet about what you need to know about setting your injection up.

http://hre.com/

Faster, faster, faster, till the thrill of speed overcomes the fear of death........