vapor line and boxes what do they do?
Look at the tank itself now.. The white thing goes down like normal.. psi blowoff I assume.
Then to the right of it is that black thing that sticks out.. I capped the plug that goes out to the right, and the plug that goes out downard I put on that rubber hose. I run that rubber hose up along the filler neck and it just hangs there. That's my vent.
The 98's is more of a canister lookign thing.. big and round. The 99+ is more of a rectangular box.
The 98 if I can recall has 2 vac lines coming from the fuel pump arm. I think you'd cap one and use one as a vent. Remove all the vac lines to the EVAP canister in your wheel well up to the intake and just plug the intake.
Make sure you vent the right line from the tank though. One is a pressure blow off which you must leave, one line goes to the EVAP canistoer though which is the one I'd use to vent. Just use a hose and run it up along the filler neck.
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If you would let me know, I would appreciate it. I am switching manifolds on my truck, but need to retain EVAP controls. (The truck sensor plugs straight into the manifold, so I need an F-body setup for the F-body manifold)
Thank You


I need those parts circled in the picture and the plastic line coming out of the other end of that round sensor. 

btw John awesome FI setup can't wait to see it run! 