I am in the process of replacing a head gasket on my 84 b2000.
on the exhaust mani. There are three tubes coming out. Two going to the air cleaner the other wraps around back to the intake.
my question is what are they for and can i delete them?
Thanks
I know on my 86 and my 1990 u can, just exhaust recirculation hoses to reburn exhaust that hadent burnt all the way, in other words thery are for emissions.