Hello I am new to tuning but not cars. I currently have a 2013 Caprice PPV with l99 gen iv ls. The only mods so far are cold air intake and 2.5" exhaust with x pipe to remove middle resonator. Also went with 174 degree thermostat. So what would you recommend for max timing increase over stock with commanded 12.3 afr in pe table?
Ideally a dyno would be used for this but most don't have one.
I would say to stick around the low to mid 20's for timing. The stock camshaft is pretty bland and even with VVT you don't need much more than 25ish for timing at full throttle.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Thanks for the reply.
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