Hey y'all I've done some searching but can't find a whole lot. I got a 73 f100 with the 240 inline 6. I did a tune up Friday and found out that someone has already converted it over to a Mallory pointless ignition. That was a nice surprise. I pulled the vacuum Jose off the vacuum advance and noticed it wasn't pulling any so we unplugged it from the port on the carb and still nothing. Not even right at the carb. So we pulled it off and rebuilt it. We also put a new vac line on cause the old had a bb stuck in the carb end of it. Started the truck up and still no vacuum coming off the carb. The truck runs OK feels like its lacking something while its driving but otherwise it runs OK. Do I need to try to fix this or is it an issue or any ideas what's going on. Do Ieven nneed the vac advance with the converted ignition?