I did mine at .55 with NGK-IX Iridium spark plugs and the Red GM Z06 or LS6 Wires.
But i know it says .60 for stock but alot of people go between .50 - .60 depending on preference i guess but i just went with what my friends that have LS-1's set theirs since they said it worked good
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2002 Z/28 = Firemutt Racing 370 w/ Cam, Trick Flow heads, TPIS 90mm Intake & 90mm T.B., Vigilante 3600 t.c., Michael's Transmissions Built 4L60E.
QTP Headers, Mufflex Stainless Y-pipe, Pypes Performance Exhaust, Moser 12-bolt w/ 33 spline axles,Truetrac & 3:73's., Spohn.
Cartek Tuned...
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