TR3A high idle speed

When I get the mixture set using the lift the piston technique, I 
cannot get the car to idle at less 1000 rpm, even though I have the 
idle screw and the choke screw backed all the way out.  If I richen 
the carbs up by 4-5 flats I can get it to idle the proper 600 rpm.

Suggestions?

John
John A. Wise, Ph.D., CPE
5483 W Potter Dr
Glendale, AZ 85308

(+1)(623)376-9632
Wise@erau.edu

http://home.earthlink.net/~johnwise/TR3A.html