I'm having trouble with the choke sticking shut. After a good cleaning it hasn't improved. It all started with the thing staying at high idle as I pulled up to a stop, and I would have to tap the trottle to get rpm's down. Then it would kind of idle rough. Any ideas or suggestions? Also, has anyone ever installed a Pertronix Ignitor ignition in their 1st gen? A friend of mine put one on his 1966 GMC truck (V-6) and said it made a world of difference. It supposedly fits under the stock distributor cap and replaces the points and condenser with a little electrinic box so you never have to change these parts again and never have to adjust it. It's supposed to be like installing an electronic ignition, but only takes like a half hour to do. Plus my friend got his off E-bay for like $42. I checked at the local parts store to see if they had one for my 72 and they are about $90 retail.Has anyone ever done this or heard of it? How does it perform?