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One of the features I really like about the Demon Race King 1090 cfm gas carb is the idle adjustment on primaries and secondaries and adjustable air bleeds. It performed perfectly right out of the box.

One of the decisions you have to make is the fuel system. We decided to try the new King Demon 1090 cfm carburetor. A critical part of getting the “right” fuel system is to stay with one system. There are several manufacturers that make pumps and regulators that work fine. Only Barry Grant makes the pumps, regulators and the carburetors. Our initial runs have been trouble-free and the Barry Grant Fuel System has performed like they said it would.

There is a little trick for the BG Fuel System 4 Port regular. Attach the hoses that go to the carb as shown; it balances the pressure within the regulator.

When using the BG400 pump the bypass pressure has to be set with the engine off. We set the pump pressure at 22 psi and the pressure at the regulator should be 7 psi with the engine running. Jerry Dooley gave me one tip on plumbing the 4 port regulator for a single four barrel. Use one port on each side of the regulator and use the front one on one side and the rear one on the other to balance the regulator for steadiest output.

A critical part of every racecar is getting the proper instrumentation to monitor the temperatures and pressures of the engine, transmission and electrical system. We chose Auto Meter to supply the instruments for “Project 4-Link”. Since space is critical on a dragster dash panel we ordered the 2-1/16” Ultra-Lite gauges and the 3-5/8” tachometer. Another consideration was whether or not to use electrical gauges or mechanical style. Due to the length of capillary tubing that would be required to reach from the engine/transmission to the dash, electrical gauges are the logical choice. The only mechanical gauge we are using is the oil pressure gauge.

The layout and design of the Ultra Light Auto Meter gauges is easy to see and their accuracy is legendary.

 

 


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