I bought a new double roller timing chain for my car. At 100k i figured i better do it, anyway on the gear it says i can advance the cam timing 2deg. or stock timing or retard it 2 deg. What should i do. on my old 84 ta i advanced it 2 deg and it made a the car about a tenth faster but i dont know any thing about these computer cars. So what should i do for the best performance without messing up any of my computer stuff.
Thanks

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91 Z-28 Coupe
L-98, 700-r4
Borla cat back
Performance Resource chip
Centerline wheels
K&N, Gutted air boxes
Gutted cats
Best Pass = 13.710 @100
Best 60' = 1.842
on M/T Sportsman Pros

Race Car:
S/P 91 Camaro Z/28
454 LS7 crate motor
Crane Roler cam
Dart intake
1000cfm TRC Carb
Powerglide
9" Ford rear
Goodyear 14"-32"-15"
Weld prostars
All steal except for hood and rear deck
Best ET: 9.64 @ 145
3000# with driver

 

2 degrees doesn't ammount to a hill of beans one way or the other, really. I'd shoot for 2* advanced like you were planning to do. You have to figure you're giving back one of those degress to chain stretch in the first 15 minutes of run time anyway.