The only car out of four that I have installed bosh plugs in that ran well after install was a third jen camaro. 
Thoughts on Bosch Platinum Plugs
Same here used the Bosch Platinums years ago in one of my cars since they were supposed to be the best. Car ran like crap a short time later. Changed them out for good ol' ac delco's and problem solved. NGK's for my SS and GTP though.
i have had success and bad times with bosch's. when i had my 3rd gen(92RS 305) they worked great, improved mileage, ran smoother. however, in my '01 with cam and bolt ons. they dont work worth a damn. i put them in my wifes '96 cav and they work good. i have noticed that they tend to work better on a car that has a hei type ignition vs. a coil-on-plug ignition. thats what i have seen by my personal experience. i think for a stock car they'd work great. but for a modded car go with copper.
Ski
Ski
Originally Posted by 1999Daytona500PaceCar
Like I noted in my original post - some pretty funny and odd comments here. But anyway...
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I've put them in 4 cars now and never had a problem. In fact on my 76 Skylark with the built 350, I almost had to use them as the Bosch plugs are shorter than standard plugs and fit with the headers nice. Only reason I didn't get them this time is the NGK plugs were cheaper and seem to work good as well.
