Holley Blue Non Stick Metering Block Gasket With Accelerator Pump Transfer Tube # 108-91.

This new part is used on Holley 4 barrel models 4165 & 4175 carbs with accelerator pump transfer tube. 

Blue gaskets are compatible with alcohol, methanol and E-85 gasoline

Gasket is ~ 0.065" thick.

You will receive ONE - FOUR gaskets.

NOTE: THIS GASKET IS ALSO USED ON LIST # 6425, 6708, 6709 & 7010.

Please contact me if you have any questions about fitment.