balky, backfiring Syclone

[jbouchillon]

hello all,
I'm a new member to turbobuick. Have a virgin Syclone. Question: How do I fix a balky, backfire in my TurboV6? Already done the plugs, wires, rotor, filters maintemance. Forget fullbore acceleration, it is anemic. Have 200K interstate miles but does not burn oil.

Jerry

 

[Alky V6]

How's the timing chain doing?

 

[Mac in SD]

You might get better answers in the Syclone/Typhoon forum.

Unless you have a Stage 2 Buick-powered Syclone.