[Tom Vaught]

I mentioned reducing the air bleeds on the carb.
I have several Boosted Engine Carbs I have collected over the years.

An example of some of the mods for higher boost applications would be:

1) Larger Needles and Seats and more Needles and Seats: (2 N&S assemblies per Fuel Bowl).

2) Replacing the typical .031" Primary High Speed Air Bleeds and .028" Secondary High Speed Air Bleeds with drilled .015" High Speed Air Bleeds.

3) Plugging and epoxying (fuel resistant) the emulsion holes in the metering blocks completely shut.

4) Installing 12 hole Annular Discharge Boosters

5) Drilling into the carb center cavity from the Air Cleaner Boss hole and then installing a Pitot Tube in the airstream to pressuring the two Power Valve Cavities (after you drilled a Connecting thru passage that will activate both Power Valves at the same time.

Modifying Power Valves for Boost Reference operation.

Modifying the secondary metering block for a lower Fuel Bowl feed and Boost Spring Retention.

Notched Black Floats and Rear Jet Extensions

Modded 2.5" or 3.5" 4 window Power Valves for a lighter spring and Boost Mode.

And there are more "Secret Mods" that the carb builders will not tell you on threat of death.

Most Every Boosted Carb guy can built you a nice Boosted Carb. Just some can build you a carb that is a level higher vs the rest.
Luhn Performance made 863 HP at 13 psi with a very basic 455 engine at 5300 rpm and over 900 lbs/ft of torque at 4800 rpm.

We are talking 1500 HP capable 850 cfm Double Pumper Carbs here, not a basic 863 HP simple mods carb. (with Intercooling and Turbos). Dominators can easily go over 2000 Hp and have in many dyno tests. Just look at Steve Morris site at all of the videos where he has proved that deal.

Tom V.