[K.Wilson]

Clois,
I run two 600 CFM Vacuum Secondaries on mine. I have 10.5 to 11 inches of vacuum so I run 8.5 power valves. The front carb has 59 main jets and the rear carb has 60 main jets. It is stronger if I drop down another couple of jet sizes, however 90 plus degree days are not uncommon here so it is better to run a little on the rich side and not risk the engine.
The carbs are chrome with a black powder coated main body. The manifold is jet-hot silver coated so the system has a lot of eye appeal.
Keith