Stumped and Frustrated with a Holley 670 Hesitation

No, Im still trying to find the source of that! I doubt this weekend I will get a chance to do it, since it is so fricking cold here.. They had snow in parts of the state last night... Brrrr to early for that yet!

That is for sure the last thing I want to find before the snow is here for good so the next nice warm day we have I will be working on it..