I recently bought a 1995 Pontiac Grand Prix GTP, love it.... just got some work to do it
3.4 DOHC 24 valve

i bought it with a bad brake booster and leaks in the intake gaskets
it had a terrible idle with the leaks

took care of the booster and the intake gaskets but it still has a "shaky" idle at times

any "common" information on this car would be helpful