ok, well sometimes on start it will blow out a bluish type smoke, but then it will quit, but also sometimes, it will smoke from start till shut off unless im goin downt he road, it also acts like its floodin or something? could that be it, like a maf sensor? idk, how do i fix this? its really embarassing, also idle is around 1500-2000 on start up in park and naetral, what could cause that, and how do i fix that? im stupid with engine work, by the way i have a 305 tpi

 

Blue smoke usually means burning oil, black smoke is rich fuel mixture, according to my text book.

 

Someone posted this some time ago:

Blue - Burning Oil
White Billowy - Burning Antifreeze
White Steam - Condensation in exhaust system
Black Smoke - A rich condition


SMOKE COLOR AND ITS CAUSES

BLACK SMOKE - Restricted air flow ( dirty / obstructed air filter; plugged exhaust; restrictions in exhaust system; defective turbo / supercharger); Overload; Improper injection (poor atomization, injector dribble, late injection)

BLUE SMOKE - Worn or stuck piston rings; worn valve guides and stems; high crankcase pressure; worn / supercharger oil seals.

WHITE SMOKE - Misfiring cylinders; water in fuel; air in fuel; water in cylinders (blown head gasket, cracked head or liner); lack of compression.

 

ok, i just checked it again, cause i know its not oil , well i checked it again, and its more of a whitish, i stuck my finger in exhaust while it was just off, and its like water, or something, liquidysmells almost like gas, also, i have black stuff built up in my exhaust, like unburn gas maybe

 

For white smoke my book says partially burned fuel, probably too much gas, can't burn it all.