Quote Originally Posted by pennyman1 View Post
Yes you need to plug that line - did you plug the port in the manifold that went to the carb? It is under the carb and you tap the hole and screw in an Allen set screw with pipe dope to prevent coolant leaks under the carb adaptor.
You can do this no problemo. Buy a cheap ass metric tap set with an M8 tap in the kit and find some small files. The cheap thread taps have metal burrs all the way down the cutting threads - run a small file through every cutting thread and it will make into a decent enough thread tapping tool (if you don't file the burrs off it will shred anything you try to tap a thread into and the bolts going into your newly tapped holes will feel sloppy - if you can even get the bolts to bite...) Then use the M8 tap on the coolant gallery you want to block off as it is exactly the same diameter as the carb mounting stud holes. Buy a bottle of thread locker and a pack of assorted metric grub screws and seal the deal!

http://i1089.photobucket.com/albums/...psh9zn1qms.jpg
http://i1089.photobucket.com/albums/...psdowqkmja.jpg
http://i1089.photobucket.com/albums/...psiu2qoqmi.jpg
http://i1089.photobucket.com/albums/...pslye1zwy4.jpg