3 1/8" 7000 rpm American Platinum Tach(E) blk ndl 3-1/8" 7,000 RPM Electric Tachometer Above tachs operate on 4, 6, or 8 cylinder engines with standard, electronic, and most high performance racing ignitions with 12 volt power.Hole Size: 3-1/8".
1 1/2" 0-15 psi Sport-Comp slvr face presure gauge Auto Meter's new selection of 1 1/2" fuel ressure gauges mount conveniently in the engine compartment for easy adjustments on fuel system, regulators, and carburetors.