I have a 94 camaro z28. With almost everybolt - on there is aval. like a 58 throttle body, pulleys, k&n, ETC. MY newest mod is the LT4-HOT CAM with 1:6 roller rockers and 4:10 rear end. I was wondering my car is running lean according to the air/fuel gauge. With the pcmforless tune. Will I notice a huge difference in power, throttle response. What kind of gains will this provide. Also will my car run rich or ideal with this pcmforless. I think my car is running lean because It dont reconize the cam. I'm not sure. B

 

Normally the car will run rich with those mods and idle too low. There is also something with the shift points with the a4 trans using a large tb but I forgot what it was. IMO, you can find the tune you are looking for an the net if you have way to flash it to the pcm. It's so common, I wouldn't pay for it. Buy Tunercat; then you can log runs and tune it yourself with freescan.