I just installed the 6AL in my '69 and the factory tach would not work without the adapter. Although...the guy on the MSD tech line told me it would....it still wouldn't until i installed the adapter. go figure.
A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more!