Trouble starting in HOT WEATHER

[silvercert]

My 87 GW, 2150/360 starts perfect every morning. But every afternoon when I step out of the hanger to go home it takes a while to start. Sometimes it spits and moans and throws smoke out the air cleaner. Why is it only doing it in the afternoons? The carb is rebuilt 2 months ago and was fine till it started geting warmer weather (outside).

[Chevelleguy]

Check your choke setting it may be set too tight (rich) causing it to flood the engine. With the 80+* days we have been having (not sure where your temps are) I would think the butterfly should be open about 1/8" when the engine is cold.