Thoughts on new carb !

Thank you Inertia, Ok just worked on this Holley, started with fuel level adjustment, then set idle, next moved on to the air fuel adjustment, before I touched the adjustment screws I just wanted to see where they where, as I turned them in they only moved about 1/2 turn on both of them till they stopped, I thought this maybe my problem, because they tell you to turn the air fuel screws in to stop and turn out 1-1/2 so that is where I started at, adjusted both side air fuel screws in to stop and out 1-1/2 turns , started car ran very poorly , I then did a 1/4 turn out got worst, I had a vacuum gauge hooked up trying to get the max. inches of vacuum, the best I could get was 15 inches of vac. and to get that I had the screws turned just about where I started at, only less then 1/2 turn from being fully seated, so I know this is not correct, I want to get so brake fluid to spray around to see if I have any vacuum leaks. If I moved the idle up to near 1000 rpm I would get about 17 inches of Vacuum.


The fact the mixture screws have any authority (work) shows the t-
slot is very close.
Starting at 1 1/2 turns out is just a industry starting point, thus the adjustment afterward.
Believe your vacuum guage, myself, I'd be happy where it is, and check that every other aspect of the tune up, timing, dwell, pcv, etc. is correct before messing with the carb.
jmo
Good job .