I recently had my Weber engine redone. The builder suggested a std carb setup to stretch horsepower and torque. Anoth option would be changing the open Weber horns to a closed air box. These previous posters have the right train of thought.
An off the wall option;
Well, I liked the look of horns and don't track this Pantera. Decided on 4" tall horns made by Cook. (4" to keep horn radius away from rear slanted window) They are a 2 pc Alum threaded unit which encases an oiled filter material. They keep dirt out, protect a bit on possible engine fire, help keep some water out while driving. If I want more power - the top filter covers unscrew.
The Cook horns pictured below are very restrictive. With covers off we dyno'd to 509hp. With covers on (including filter material) 439hp.
I love them.... sort of a Built in governor, ha.
The Inglese thin wall, open top, spun horns would be better performers. They are more heavily radiused and thinner allowing more air volume.
Attachments
Images (1)
