MagnaFuel - Two -10 AN Female O-Ring Ports - Four -8 AN Female O-Ring Ports - Black KAW10MCB Calibration Plug:

Calibration Plug:

Measures the distance between the deck surface of the block and the piston deck

1991-2001 Ford Explorer

1974-1974 Pontiac Ventura

MagnaFuel - Two -10 AN Female O-Ring Ports - Four -8 AN Female O-Ring Ports - Black KAW10MCB Calibration Plug:Product Description: Fuel Block Two 10 AN Female O Ring Ports Four 8 AN Female O Ring Ports Aluminum Black Anodized Since 1995, MagnaFuel has designed and manufactured premium, long lasting, durable, high performance fuel systems. MagnaFuel products continue to be developed in close association with professional racers. When you purchase a MagnaFuel fuel system, you reap the benefits from the work of those such as Warren Johnson, Kurt Johnson, Greg