Spend a couple bucks and do an O2 sensor in the exhaust with a digital gauge from either Jegs or Summit. Set the timming to best vacume at idle, this will need a good timming light with dwell. Follow what everybody else and your carb jet chart says to get a good baseline and when thats set just follow what the O2 sensor says to get best lean! I did this before taking my Jeep to the dyno shop and they spent an hour trying to get it better but ended up with my settings in the end, proof that it works I guess?