Need Experianced Advise

[Guest SBZ]

On the proper way to set-up idle mixture on 4 corned idle circuit.

Chuck Nuytten 750 (DP) I have little experiance messing with a 2 circuit

system, do the basic rules of having all 4 the same still apply? Help would

definately help my throttle response and idle quality.

[grumpyvette]

most things that work on the standard carbs work on the 4 corner idle dominators or similar carbs

don,t forget to make sure the carbs linkage opens fully and smoothly and the accellorator pump,s starts squirting fuel as the carbs throttle blades open

 

http://www.centuryperformance.com/vacuum.asp

 

http://www.bob2000.com/carb.htm

 

http://www.dawesdevices.com/airfuelmeter.html

 

http://www.bgsoflex.com/holley.html

 

http://www.goldrush.com/~rhuish/temp_data/carbtune.html

 

http://www.mortec.com/carbtip1.htm

 

start by making sure the other factors are correct like ignition timing and the valves are correctly adjusted

start on the carb by turning all the idle screws in just till they touch the seats then back each out 1 1/2 turns, if thats not enought or too much adjust out or in on all four screws the same amount untill its close to correct and take notes

set the ignition timing at 37 degrees total to start and check the full ignition curve is in bye about 3000rpm, most distributors work starting at between about 8-12 degrees initial advance, check for vacume leaks

check to make sure you have about 5psi of fuel pressure minimum and about 6 psi max

get a vacume gauge and tac. and use them to find max vacume at the lowest rpm that idles steady with your cam

read the links

[Guest SBZ]

Thanks Grumpy info is great just what I was looking for in the seach feature, found nothin and then you answer. Thanks