1 This is the traditional Holley a with cathedral-style fuel bowls and metering blocks for both primary and secondary sides. Because the 4150 has twin metering blocks, it is the most tunable Holley performance carburetor ever.
Holley has been the undisputed leader in fuel systems for over 100 years. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. In-Line Universal Electric Fuel Pump;
Many thanks to Tom Kise from Holley Performance Products for the fantastic seminar on Holley products. It was a great turnout for the cruise-in and we look forward to hosting more of these in the near future!