Up for sale is a Barbron stainless flame arrestor. It is 5 3/4 inchas wide, 3 inches tall and the opening is 5 1/8 inches so it will fit Holley 4 barrel carburetors and many other 4 barrel carbs. It will not fit Rochester or Weber carbs. This flame arrestor also has a fitting for the fuel pump overflow and it is Coast Guard approved. For other cool parts and close out specials check out fatboysh2o.com Buyer to pay all shipping charges. We accept cash upon local pick up, credit cards and Paypal. Check out my other items!