Im running delphi o2 sensors (~$35 ea)
valve spring compressor if you're doing it yourself
pushrod length checker for measuring
balancer puller and an installer tool
oil pump o-ring
bigger injectors
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1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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