Getting Ready for a 1,500 Road Trip

Arrived safe and sound in Valley Springs, CA from La Paz, BCS, Mexico last night (left on Monday at 2:00 PM). Distance was about 1,500 miles. Some parts looks like the 273 two-barrel got 20 mpg but in California traffic dropped to about 14 mpg. Had one incident where the needle and seat stuck and dripped on the intake manifold, but that corrected itself after the motor cooled down. Added a quart of oil about every 500 miles (could see a little wisp of smoke in the rearview mirror at times). Otherwise, not incidents on the highway. Now trying to see it here before I return home to La Paz,