Re: adjust idle speed without tach
adjust it to where it will a little more than barely stay running.
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2004 GTO H/C/I/E 6mt 430hp
2001 2500HD 6.0 Gasser Leveled on 33's
73' C10 SWB 5.3 L59/4L60E 4/6 Dropped
70' K/20 "Family Heirloom" 292/SM465/NP205 - Project
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