Holley EFI Hi-Ram Intake Manifold - 105mm TB - GM LT1 Tach Signal Filter One of of these innovations

One of of these innovations is the Del-a-lum bushing

0 RPM II Manifold

If not cleaned or replaced regularly

1968-1971 Plymouth Barracuda

Holley EFI Hi-Ram Intake Manifold - 105mm TB - GM LT1 Tach Signal Filter One of of these innovations*** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions. Overall Height: 13. 34" (w EFI Top 95mm or 105mm) See Drawing A B Height: 12. 10" (w Carb Style Top 2 x 4150 or 2 x 4500) See Drawing Height at Plenum Flange: 9. 44" Port Size: 2. 06" High x 1. 53" Wide Runner Length: Approx. 6. 5" Large Plenum Volume