69SSC5

1980 350ci w/performer rpm intake, holey carb/very mild cam and cap in coil distributor. New spark plugs (gaped to .040"), new spark plug wires, new cap, coil and rotor. total timing is set at 34* all in by 3,500rpm, initial 14*. did the tune up yesterday and it ran like a champ but today i notice a tiny miss at idle when it was sitting in my driveway. Any ideas?

REELAV8R

First thought is that the idle mixture is a little lean. Try that first.
Kind of depends on how much of a miss were talking about.
On my 77 I had where the mechanical advance was sticky and it would not return to a fully unadvanced position after advancing. Had to tear it all apart and carb clean out old grease that had become sticky before I could get it to work right.

wombvette

Almost always a vacuum leak on the 5-8 runner. Pinch off the vacuum line and see if it clears up.