I decided today to change the plugs on my '86 El Camino that I just bought last week. I got under the hood and noticed that the plug wires on the dist were not in the correct firing order. Strange I thought, since the car ran well, a slightly rough idle but nothing bad. I change the plugs and put new wires on, in the correct order. It starts fine, but idles fast and seems down on power. I park it, check under the hood to see if I might have pulled a vaccum hose off. Start it again idles seems normal but on starting if bounces around under 500rpm for a sec. Again it still seems under powered but drives fine. Does anyone have any ideas? Why were the plugs wires not in the correct postition and why did it run ok, and even got 16.8 mpg last fill-up? I'm at a loss.

1986 El Camino
305 w/ Q-jet
Stock with all smog

Dustin

You beter recheck fireing order and trace wire's to cylinder's.Maybe your one off there,should back fire alittle though threw exhaust.Check dwell on points and timing.