Chevy 454ss Holley Sniper EFI Install - OBS Chevy Big Block Shop Truck Ep. 3

This week we are getting rid of our stock throttle body injection system for... another throttle body injection system? Well yes and no! We’re getting rid of the TBI on our Chevy 454ss Big Block for a Holley Sniper EFI system. And while these two system might work similarly, the Holley system is going to give us so much more control when it comes to being able to make adjustments on the fly and monitor all of our fuel readings from inside the cab of our OBS! We’re not just dropping on a Holley EFI this episode though; we also have all of the Holley Hyperspark supporting components to go along with it as well to make sure our big block is getting a strong, healthy spark. With the motor back in place, we can make some adjustments to our new long tube headers to get the 454 fitting back snug in the engine bay, so we can then assemble the rest of our drive train! With our modified headers fit up and our fuel system installed, we’re just a cooling system away from firing our Big Block 454ss