I JUST BAUGHT A USED HOLLEY PROJECTION 2-D CLOSED LOOP {DIGITAL SYSTEM} THAT HAS NO INSTRUCTIONS ON HOW TO "TUNE" IT ! DOES ANYONE KNOW WHERE I CAN FIND THESE INSTRUCTIONS ? I HAVE INSTALLED THE KIT ON MY 1975 CJ-5 WITH A CHEVY 350 AND IT RUNS OK...... BUT I WOULD LIKE IT TO RUN GREAT. I HAVE TALKED WITH HOLLEY 4 TIMES AND THEY HAVE GAVE ME 4 DIFFERENT ANSWERS FOR JUST ONE QUESTION ! THEY ARE FAWKING STUPID AND WOULD NOT FAX ME THE INFO I NEED.THEY SAID THEY WILL SEND IT TO ME BY SNAIL MAIL AND I HAVE A TRIP TO RUN IN THE NEXT COUPLE OF DAYS. ANY HELP IS GREATLY APPRECIATED THANKS.....................................:beer:

if you want to call me i can read you them and give you some tips i have done about 4 of them ranging from chevy 350s to my ford 460. i will email yah my number. if im logged on yah can call tonight if not call tomorrow, i also have a fax machine

There was a really good couple of posts about this already, you might want to do a search.

Some of the real basics are getting the TPI to I think ~.65V, and getting the fuel pressure right. There is a screw in the center of the throttle body that you can turn with an allen. Anyway just to double check me do a search.

Shoot holley an email and ask for a copy of the manual.

That's how I got my copy after the wife tossed the original.