Afternoon all

well im having a few problems with my carb on my

1988 D21 Z20 2WD

while driving around,u come to a stop sign and the ute keeps a very fast idle (have to drop in 1st gear, slip the clutch and that kills the revs back to a normal idle)

all the butterflys on the top of carb return and all likages spring back after reving but the revs stay high

only doing when warm
have check and reset float hight, idle speed, and mixture screw, and a can of CRC Carb Clean

any help would be great!!

anyone have a link to a tune up guide for the Z20?

Have power brakes? Could be a booster vacuum leak.

Yer power brakes. Wats the best way to find vac leak.