New air/fuel ratio gauge - Page 5 - Vintage Mustang Forums

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post #61 of 62 (permalink) Old 12-09-2012, 07:49 PM
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Location: Severna Park, MD
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"I was doing some research and I came across some threads about making sure the amount of the transfer slots showing is correct. I looked at mine and it looks like too much is showing, indicating the throttle is too far open. Do you think this is affecting my idle in any way? How can I close the throttle more and still maintain my idle? Would I have to adjust my secondaries to compensate? My lack of experience is showing here."

Typically the idle transfer slots are below the throttle plate. All else being equal, if you set you curb idle speed to let's say 750. Then, If you were to close both idle mix screws, this should starve the engine of fuel through those transfer slots and kill the engine. Do this and see what happens. If the idle is too high, you run the risk of the engine no longer using fuel from those idle transfer slots and the transitional system is brought into play. Research your carb's inner working and you'll be better at trouble shooting it's issues/
Good Luck!

Ken ..
64 1/2 Poppy Red too!, Cvt. Resto-Mod
333 T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums
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post #62 of 62 (permalink) Old 12-09-2012, 10:37 PM
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had my eye on one of those forever, cool stuff man!

'65 coupe
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