need to retard timing under boost

[JOHNGEAR]

hi can somone direct me so i can retard some timing under boost (6psi) because i looked and looked but cannot see where i have the option to correct this issue.
thanks
oh, have the v2 program

[nonnieselman]

are you running a COS?

Post your tune up also..

[JOHNGEAR]

it is for a 96 k1500 changed to a 0411 from a 2001 express van

[nonnieselman]

Read up on the Custom Operating systems man... COS 3 is what i use.. its got all the special tables for what you want to do.
OS 02020003 is what im using
since your running a 12212156.. thats what you can run..

lemme know if you need some more help..

look in the tutorials, everything is there.

[JOHNGEAR]

thank you i just need to find the time to read up

[Lextech]

Hey John,

Are you using a 4l60 or 80 trans? P.M. me your E-Mail address and I will send you a COS3 tune to get you started. You will need to input your tune specifics into it.

Jeff