I have a Chev Camaro Z28, with a misfire problem.
> The engine is a 350 but not factory. It is High Performance with a > large cam.
> It has carburation and HEI ignition system.
> It is running as though it is misfiring, yet it comes and goes. It
> seems to smooth out completely at higher RPM's (under load). I have
> done the following and am now at my wits end:
> -Replaced plugs (twice), plug wires (twicw), module (twice),
> distributor, cap (including ignition coil), rotor.
> So then I thought it might be a fuel delivery problem.
> -Rebuilt and put in a carb kit, new fuel filter, and new PCV
> -Replaced fuel pump
> next on my list is to check timing, and compression. I am not blowing
> smoke so I thought it should'nt be in the bottom half.
> Up until now I have only had a problem with fouling plugs, one or so a
> month, a different plug every time. If anyone has a suggestion as to
> where I should look next (aside from getting a new vehicle), any help
> would be greatly appreciated.
> Thanks,
> Squeak
Plug wires crossed?
It happens to the best of us.....check 'em.