This is a Holley 3810 3332 part # 3906631-DA.
1967 Corvette Holley 4 BBL OEM Rebuild Kit 3806 3807 3810 3811 3814 3815 3836
1966 1967 Corvette 327 300/350HP Holley/GM L-3810/3906631-DA, 725CFM, Vac Sec.
AutoMeter 3332 2-1/16 in. Water Temperature Gauge, 120-240 F, 6 Ft., Mechanical,
AutoMeter 3332-M 2-1/16 in. Water Temperature Gauge, 50-115 C, 6 Ft., Mechanical
NGK XR5, One Ngk V-Power Plugs 3332 Aftermarket High Performance Racing Part
AutoMeter 3332-M Sport 2in Water Temp Metric , 50-115 deg. C / Mech