I also have a mail order tune, and get TERRIBLE fuel economy. I have an auto, full bolt-on, cc305, 3200 stall car w/3.73's and get ~8MPG casual driving. Is this correct? Could another mail order correct this?

 

My tune was ok on my cam car just alot of timing was used. When i went to my 383 it was all over the place. on his tuning it went from 376rwhp 412rwtq to Ed Wrights 417rwhp and 496rwtq. And it took over a month to get it. I think if it is a simple tune he is good. over a cam car i would get a dyno tune.

Just my .02

 

Could be a whole bunch of things other than the tune (it could be the tune). When was the last time you did basic things like plugs, wires, fuel filter, etc? Vaccum leak, exhaust leak, bad O2's, etc. Check those things first. How is the a/f ratio?

 

He's tuned my car about 8 different times. does an awesome job and answers all my questions and give me his opinion best he can. My car is a one-of-a-kind and for him to tune it as good as he has says something!

 

great tuner have used him for both my 357 and new 383 setup tunes...very prompt and even helped me out late one night

 

how much did ed wright charge?

 

I've had nothing but outstanding service from Ion over the years.

 

Due to all the feedback, both positive and negative, I have decided that Ion will be my best choice in a tune for my car.
Thank you all so much for your input and for taking time to respond.
Have a great weekend,
Visshus