I have a 1991 TA 305. The car was running excellent 2 weeks ago. Now the car has lost power and has a rough idle. I checked several spark plugs and took compression on the cylinders. All OK.

Good spark too.

Any suggestions?

Thanks.

 

Any suggestions? Yes. Check ALL the spark plugs. While you're there, test and inspect the plug wires for resistance/foot and external damage. When that's done, take a look at the cap and rotor for wear and arcing.