[68c10airstream]

Hi, welcome aboard Lee. Get with ls1nova, he's very helpful, and he has a writeup on here about exactly what you are asking . Under the search quere box near the top of the page (check 67-72chevytrucks.com box instead of web box being checked) put in dbw cruise or electric speedo and ls1nova article should come up, been there many times. Click on ls1nova page and read his posts should also get you the info you need. Good luck on your project.