Tuning the Car Up

Alright, my stang is needing a tune-up. Today, I changed the motor oil, cleaned the air filter, and replaced the fuel filter.

I need to change my plugs and was just wondering what kind to get. I hear the Autolites are pretty good and cheap also. What about Motorcraft? My car is basically N/A. Checked one of the plugs & it looks okay I guess. They are the stock plugs @ 50K. I will still change them anyways and don't have to worry about them for awhile. Any suggestions would be apprieciated. Thx.
 
I didn't notice a thing, 46k on the original plugs. :shrug:
But apparently people are able to feel the increase in power from C&L Plenum and Steeda Underdrive Pulleys but I didn't notice a thing from those either. lol. Waiting for the track to re open :D
 
I changed my plugs a few months ago at 34k but they were original plugs on a 96. Honestly i don't think that you'll feel a difference unless the plugs are covered deposits. Mine weren't bad at all and i changed them with no difference. But my camaro wen't 80k with the same plugs and when i changed them it made a difference, then again the gap between the plugs was filled with deposits so that gave me some problems.