Motor stalls after secting drive when motor is cold.

[dags061]

I have installed a 350 holly and have it idling fast , but when i select drive when cold it stalls. Any ideas would be great.

 

[db_notso]

im no carbie expert but i have an old holley troubleshooting book this is whats in there for your fault
CONDITION
Engine stalls when transmission is put into gear.

#)POSSIBLE CAUSE #) CORRECTION
1) Incorrect choke pull-off adjustment. 1) Readjust the pull-off or replace if necessary.
2) Fast idle RPM incorrect (too slow) 2) Speed up the fast idle to factory specs.
3) Engine running too lean because of vacuum leak or dirty jet. 3) Check for vacuum leak. Flow test carb to check jetting.

 

[Tree cutter]

Either needs the choke on more or adjust the idle mixture to richen it up a bit.