i have a 95 3.4 that i have put a k&n cai and flowmasters on and note that for some reason i can get it up to 115 with out the gov kickin in. anyway what should my next upgrade be. its and auto, can i still change my gears. I am about to get new spark plugs, are there any good ones that will add any power?
thanks

 

If your present plugs are firing properly, a new set of plugs will not do much for power. However, if the plugs are misfiring and you need new plugs, you will notice the difference. Being that your engine is basically stock, you can't go wrong using the original factory issue plugs (AC R43TSK). If you want to use a different brand, make sure the plugs have the right heat range for your engine. The car uses DIS ignition, which means that half of the plugs are fired from the "wrong" direction. This is no biggie, but because of this, you shouldn't use platinum tipped plugs that only have platinum on the center electrode. You need plugs where both the center and ground electrode are platinum tipped, otherwiswe 3 plugs will wear faster than the other 3.

 

the only other upgrade is changing the gears...maybe adding a superchager ...but other then that there's not much more u can do to a V6.....ahhh...almost forgot NOS....but make sure whoever installs the nitrous system does it right..