Just put a weber DFEV on the 71 504, and I can't seem to get it to idle smoothly when warm. (when cold, too,but I'll tackle that next) Timing is set to 10 degrees BTDC, plugs are good, Also idles a bit high, and I can't back out the idle speed screw enough to get it much below 1000 rpm. Suggestions where/how to look for a vacuum leak? Any other suggestins?
Thanks,
Matt