Need help w/ stumbling issue....

[azfordman]

Thanks Posi! That's the simply answer I was looking for....just too close to the problem to think of it myself! I actually just pulled the vacuum gauge of this morning...had it run into the cockpit. I will put it back on tomorrow and keep track of where it reads. the needle does bounce a little at idle, but it is rock steady while driving, should be easy to track it. Also, checking the timing when it is acting up is another thing I should have thought of..... This group is great! The carb already has the tallest phenolic spacer I could put on and still close the hood..... Maybe I can find an inline fuel pressure gauge to see if the pump is giving out when hot.