how many people here have had good success with them with a speed density car with a fairly aggressive cam? im experiencing some driveability problems, and i know i have power to be gained in the tune. im just nervous about a mail order tune because i know my car is very touchy, im on my 2nd chip and it still has some issues. thanks for the responses.

 

Go to this website and all your questions will be answered:
http://www.speeddensity.org/

 

I had them make me a chip for my 93 with a 383. The tune was ok but far from perfect. you will need to send them data logs for them to get it right on. I just converted mine to a 94 style PCM and it runs better on the stock tune (changed for injector size and displacement) than it did on the chip they made. I'm not saying they are bad, but it will take more than one try to get it right.