I Have An 05 Silverado With A 4l60e Im Running A 50 Shot To It Can I Run A 75 Shot And Still Be Safe With Stock Transmission I Have A Tune As Well Whcih Has 25 Degrees Of Timing.

 

Should be good to go with ngk tr6 spark plugs and 93 octane with 25* timing. Try and not spray through shifts with stock transmission.

 

i would say you could go with 100 shot i sprayed mine with 70 shot with 28* timimg.that was with the 370.

 

dont spray through the shifts..... thats how i toasted my first 4l60e (after 130k miles on it too) other than that... just same things other people said 93 octane, tr6's, and i think you should be able to hit maybe even a 100 on that tune

 

seven passes of 100 here and not the first hickup from my stock 60E all i have is HD-2 and servos pretty stock to me!!! I spray through the shifts everytime. HP is HP even when your not using it