The procedure is similar as to the factory service manual.
Originally Posted by Jean
It involves adjusting the fast idle screw to achieve a certain idle RPM (usually around 1600), while on the highest step of the fast idle cam.
http://www.holley.com/data/Products/...9934-3rev1.pdf (For a Holley carburetor, read the center of page 9.)
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'78 BRONCO: 508" stroker, TFS heads, Dominator MPFI & DIS, cold air induction, dual 3" exhaust/Magnaflow mufflers, 100HP progressive dry direct-port NOS, A/C, Lentech Strip Terminator wide-ratio AOD, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, custom traction bars, 4" lift, 35" mud tires