The nipple for the return fuel line is 5/16" on the TBI, but the return line is 1/4". I have read quite a few reports that say, contrary to what some believe, using the stock 1/4" return line caused no issues. Since the nipple for the return line on the Howell kit is 5/16", I have a few issues:
1) I am having a lot of trouble finding an adapter from 1/4 to 5/16. The more I look, the more I wonder if maybe they are hard to find because it wouldn't be a good idea to have one. Anyone know if they are made?
2) Anyone have ideas on where to purchase the return line, that is if I decide to replace the whole return with 5/16? I really don't want to spend a lot of money where I don't really need to. I would rather spend the money on something else I really need, rather than changing the line if I don't really need to. If I go this route, then #1 above would still apply (for the sending unit side of the hose).
3) If you have a Howell with stock return, how did you attach yours?
Year/Model: '86 CJ7 - Engine: 258 I-6 - Lift: Pro Comp 4" - Tires: 33X12.5 - Nuttered - Team Rush'd - Howell TBI