Posted by George (in Houston) on Wednesday, October 22, 2003 at 7:40AM :
In Reply to: Clarification please! posted by Tim Holloway on Monday, October 20, 2003 at 7:20PM :
Tim,
It can go in a couple different places. Some flatheads I've seen have the valve between the draft tube and the intake manifold just below the carb and then the filler tube hose goes to the intake manifold close to the #5 cylinder creating a sealed system. I've seen others as described where the check valve goes to the air cleaner. I don't think it matter which way the the system pulls the vapors as long as it does so. You can see pics of the 251 engines for sale on VPW's site with the draft tube / check valve type set up. Many of our trucks have been converted to a regulard breather cap on the filler tube with an open draft tube at some time.
George