Category: Automotive Parts and Accessories Holley is a well-known brand in the automotive industry that produces high-quality parts for various types of vehicles. In this review, we will take a closer look at some of their accelerator pump products and provide our thoughts on each one. 1. Holley 135-5 Rubber Accelerator Pump Diaphragm: This product is designed to be used with the Holley 4160 carburetor and provides a smooth, consistent vacuum for the accelerator pump. The rubber diaphragm ensures that there are no leaks or vibrations, which can cause damage to other parts of the system. Overall, this is a high-quality product that will provide reliable performance for any vehicle using a Holley 4160 carburetor. 2. Holley 121-31 Accelerator Pump Discharge Nozzle - Pack of 2: These nozzles are designed to be used with the Holley 8500 and 9000 series accelerator pumps, providing a smooth, consistent flow rate for the fuel. The two-piece design allows for easy installation and removal, making it a convenient option for those who need to replace their existing nozzles. Overall, these are well-made products that will provide reliable performance for any vehicle using a Holley 8500 or 9000 series accelerator pump. 3. Holley 121-35 Accelerator Pump Discharge Nozzle - Pair: Similar to the previous product, these nozzles are designed to be used with the Holley 8500 and 9000 series accelerator pumps, providing a smooth, consistent flow rate for the fuel. The pair design allows for easy installation of both nozzles at once, making it a convenient option for those who need to replace their existing nozzles. Overall, these are well-made products that will provide reliable performance for any vehicle using a Holley 8500 or 9000 series accelerator pump. 4. Holley 135-9 GFLT Accelerator Pump Diaphragm: This product is designed to be used with the Holley 6700 and 7000 series carburetors, providing a smooth, consistent vacuum for the accelerator pump. The GFLT diaphragm ensures that there are no leaks or vibrations, which can cause damage to other parts of the system. Overall, this is a high-quality product that will provide reliable performance for any vehicle using a Holley 6700 or 7000 series carburetor. 5. Holley 20-11SA Accelerator Pump Conversion Kit: This kit includes all the necessary components to convert an existing accelerator pump system to use with a Holley 4160 carburetor, providing smooth and consistent performance for any vehicle using this type of carburetor. The conversion process is straightforward, making it easy for anyone to install and operate. Overall, this is a well-made product that will provide reliable performance for any vehicle using a Holley 4160 carburetor. 6. Holley 20-11 Accelerator Pump Conversion Kit: This kit includes all the necessary components to convert an existing accelerator pump system to use with a Holley 8500 and 9000 series carburetors, providing smooth and consistent performance for any vehicle using these types of carburetors. The conversion process is straightforward, making it easy for anyone to install and operate. Overall, this is a well-made product that will provide reliable performance for any vehicle using a Holley 8500 or 9000 series carburetor. 7. Holley 121-37 Accelerator Pump Discharge Nozzle - Pack of 2: These nozzles are designed to be used with the Holley 4160 and 8500/9000 series accelerator pumps, providing a smooth, consistent flow rate for the fuel. The two-piece design allows for easy installation and removal, making it a convenient option for those who need to replace their existing nozzles. Overall, these are well-made products that will provide reliable performance for any vehicle using a Holley 4160 or 8500/9000 series accelerator pump. 8. Holley 121-7 Accelerator Pump Discharge Nozzle: This nozzle is designed to be used with the Holley 4160 and 8500/9000 series accelerator pumps, providing a smooth, consistent flow rate for the fuel. The single-piece design allows for easy installation and removal, making it a convenient option for those who need to replace their existing nozzle. Overall, this is a well-made product that will provide reliable performance for any vehicle using a Holley 4160 or 8500/9000 series accelerator pump. 9. Holley 135-10 GFLT Accelerator Pump Diaphragm: This product is designed to be used with the Holley 7000 and 8500 series carburetors, providing a smooth, consistent vacuum for the accelerator pump. The GFLT diaphragm ensures that there are no leaks or vibrations, which can cause damage to other parts of the system. Overall, this is a high-quality product that will provide reliable performance for any vehicle using a Holley 7000 or 8500 series carburetor. In conclusion, Holley produces high-quality accelerator pump products that are designed to provide smooth and consistent performance for any type of vehicle. Whether you need a new diaphragm, nozzle, or conversion kit, Holley has the product you need to keep your engine running smoothly.