I have a question. I noticed my engine was running a little rough at idle in the Elco. Well after looking at it I noticed that the vacuum to the dist was not hooked up. Ok so I thought the rough idle must be due to the vacuum leak. Well I plugged the line and it continued to idle rough. I though hmmm. When I hooked it back up to the dist it ran smooth. My question is this. Shouldn't it run fine at an idle and is the vacuum advance not supposed to kick in until around 1000 rpm? If so then what could the issue be with the dist?