why do you need to raise your redline?
unless you have a stage 2 cam you dont need to raise your redline.
stock cams will be making power up to your redline and thats it.
Thanks i just thought that if i build the powerr that my power band would have increased nd that i would have to raise my redline limit to gain an advantage
You might need a tune up badly and maybe a cool air intake would help your mileage. My 93 LS can go between 300 - 330 miles per tank. It all depends on how much I gun it or use the A/C. I still think I should get aroun 400 Miles per tank on a 4 cylinder DA.