[truckin 79]

So still interested in anyone with familiarity with A/F on a Q-jet. I drive my 79 to the junkyard on weekends, not a daily driver. So truck usually starts right up after two cranks with choke down on cold morning A/F is about 12. As truck warms up on cold mornings going to junkyard about 35 miles (40 minutes one way)away I get 14-15 at stop lights and 16 A/F while cruising about 55-65 there. When I start the drive back home truck at stop lights hits about 16-17 A/F and while cruising at 55-65 hits about 17-18 sometimes gauge wont read how lean. If I step on gas it hits 13 but once out of gas I start getting 17-18 at cruise and idle. I am about 12 degress BTDC right now and seems to run okay, I am just worried that I am running to lean. The truck does not back fire or stumble while driving. On acceleration it kind of sounds like put-put-put out of the exhaust.