[Lee123]

Originally Posted by CamaroFemme

I could've sworn I read on here a cam costs you mpg. True? False? Depends on how aggressive the cam is? Let me know, I don't wanna spread misinformation!

I haven't had long enough to be certain, but it seems that I've lost 1 or 2 mpg somewhere between the headers, cam, and ported throttle body. The throttle body went on first and I had a feeling that had cost a little on the mileage, which would make sense since it has the effect of letting a bit more air in quicker at every start. I am extremely happy with that effect, though, so I really don't care. I've only gone through 1 full tank since the cam and headers were installed and got a whopping 14 mpg (calculated, not the car computer which always reads .5 high) which is a bit more than 1 worse than what I've averaged since I bought the car. Well worth it in my opinion since I love the way the car runs with the headers and cam!

MPG doesn't matter much to me but I got in a habit of tracking it a few years ago so I could see how much the ups and downs of gas prices really effect me.