Check this site out http://www.cosmic-salamander.com/aep/ It has a product called the Gastester and the ColorTune for mixture adjustments. HTH Steven Min 99 Eurovan GLS 95 Golf III 81 Scirocco S Orangevale, CA -- To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org. If you experience other problems, email: scirocco-l-probs@scirocco.org