http://www.boschautoparts.com/Produc.../Platinum4.htm

I bought those spark plugs, but the guy who did my emissions test said they arent any good for GM cars. Is he right, or are they good? I dont want to put them in unless their good.

Also how the heck do i put them in? lol

 

The center electrode breaks on the bosch plugs and causes misfires. I had two plugs where the wire falls out of the center and rest on the ground electode. The gap then is inside the tip so it look ok on a scope. If you take the plug and put it upside down, the wire with go back in. I have used only ac cr43st since. Fresh plugs are better than high milage high dollar plugs.

 

So basically return them? lol

Would the AC ones be the best?

 

The stock AC plugs are fine. Save your money for good wires, cap,& rotor. That was cr43ts, sorry.

 

Well links to the best ones would be excellent : )

 

http://www.autozone.com/Ntt,cr43ts/s...allResults.htm

 

What about the "good wires, cap,& rotor"?

And yall are sure those are going to be the best?

 

Dont know if you guys know this,but alot of the big name drag racers use ,AC DELCO in there cars.AC delco makes a good plug!!!!

 

Whats your goal here? stock gm plugs wires and cap are as good as any aftermarket junk for a stock 305. Dont be me as a kid and waste all your $ on high dollar plugs, hi octane gas and additives that dont realy do crap. save it up till you have enough to make a difference, like a set of headers.

 

Well I saved up 1300$ so tell me what some good headers are!