Evaporative system needed or not with EFI?

[RnrdTheFox]

I'm in the process of plumping my fuel system for an EFI setup. The main tank is an aftermarket 23 gal tank and the aux is the stock 8 gal. The main tank has two evaporative nipples, one of which will be used for the return. The aux tank only has one evaporative nipple, which I will use for the return line.

My question is this. Should I hook both tanks up with evaporative lines and run a charcoal canister or plug the second one in the main tank and call it good with the aux tank???? ?:?

If I want to hook up a second nipple on the aux tank, what's the best way to do that??? ?:?

Thanks for your help.

 

[eds66bronco]

i'm running the stock tank in the rear but i used a early 70's sender unit that had the evap return tube in it. i use it for fuel return and removed the canister and blocked the line to the intake. i left the canp solenoid attached to the harness so it wouldn't throw codes.

the easiest way to put in a return would be to remove the sender, drill a hole and sweat or silver solder a 3/8 or 5/16 tube in or find a sender that aleady has the second tube in it.

 

[67EB_in_619]

all that is all for emissions.. so if you arent concerned and dont have to pass smog on it (visual inspection for this part) then you can ignore and remove it all.. if you have to do all that, then you will need to plumb it all thru a canister. It is all smog/emissions related.