They’ve got you covered too, with a line of 720hp upgrade kits that contain new pulleys, balancer and a high flow air filter. Holley LT1 EFI Hi-Ram and Direct injection Controllers See All 5 ...

Starting with a bone stock, high-mileage unit pulled ... differences between the two new Holley intakes designed for cathedral-port cylinder heads. The Hi-Ram was essentially an EFI tunnel ram ...

To illustrate the effect of changes in runner length, we decided to compare two intakes with sizable changes in runner length, a Dorman LS6 copy and the Holley ... Hi Ram offered gains as high ...

The meaty power and torque curves, not to mention the sound of a naturally aspirated, high-power V8 at full ... Also notable is the Holley Hi-Ram intake and 102 mm throttle body.

Unless you've been sealed inside your garage tweaking your pro-street Vega's dual-quad tunnel ram setup ... the Holley kit uses a cartridge-style water pump common with LT1-equipped C7 Corvettes.