Holley 37-1537 Carburetor Renew Kit

Hello, you will not need it unless you have a "double pumper." How many accelerator pumps do you have? When they are mechanical secondary (double pumper) types, both the primary and secondary pump will be present. You shouldn't buy this kit if you have such a condition. The "LIST" number of your carb should be visible. On the air horn, it is stamped on the carburetor. There will be a LIST# in it. You'll find out which kit is right for you by doing that. Please accept my sincere thanks for your help.

With a Holley 800cfm spread bore under my 454 jet boat, I used it as an inboard. I think there are way too many gaskets in this kit it feels more like a one-size fits all type of There are also parts for a 2-barrel carburetor included. The machine works, but you may be able to buy individual parts for less money. The kit had only one matching power valve for secondary, and it would have to be used with the old primary valve or a new one had to be purchased No matter if it's a marine or auto kit, there should be no difference. It came with all gaskets needed for an automatic choke, an application that is generally not used by marine applications. The fit is once again perfect!