I'm guessing the BISS screw. (base idle set screw)
No knowledge of this just searching and guessing what it might be.
I assumed you're talking about the brass screw with the screwdriver blade slot.
14 V6 auto, MCA, PP, BBK Shorties, MMD Hood Struts, Borla Touring A/B's, MAC ProChamber, aFe drop-in Filter
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