Fuel Log, 4 Port, W/O Fittings Inlet Quantity: Two Inlet Attachment: Female threads Inlet Size: 12 AN O-Ring Outlet Quantity: Four Outlet Attachment: Female threads Outlet Size: -8 AN O-Ring Gauge Port: No Fuel Pressure Gauge Included: No Fuel Distribution Block Material: Billet aluminum Fuel Distribution Block Finish: Black anodized Mounting Holes: 2 Mouning Hole Size: 5/16 countersunk for allen head mounting bolts