The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-59 Evaporative control system on LS swap

**1project2many** · 10-13-2021, 04:17 PM

This device is really to catch gasoline vapors then allow the engine to burn them later. Without this you should make sure there's some type of vent on the fuel tank.

10-13-2021, 04:17 PM	#3
1project2many Senior Member Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,217	Re: Evaporative control system on LS swap This device is really to catch gasoline vapors then allow the engine to burn them later. Without this you should make sure there's some type of vent on the fuel tank.