[bhill86]

I have a 78 Qjet on my 77 T/A. Can anyone help me verify what type of fitting is used for the fuel line and also the type of fitting where the vacuum tree screws in? I tried researching the best I could but, to be honest, all of the different style hard line fittings confuse me a bit and I haven’t gotten the hang of them yet.

I essentially want a female threaded-to-barb type fitting for the end of my factory style fuel line that leads from the pump to the carb and I’d also like to find a female-to-barb fitting to fit to the end of my vacuum tree into. Which I think is half inch NPT but I’m not positive. These are just for a temporary project of mine that I’m trying to keep inexpensive so I don’t want to buy a bunch of fittings in order to find the right one.

[Sirrotica]

Fuel line is inverted flare into the front of the steel fitting on the front of the carb, 3/8 inch line. You can buy brass fittings with the 45 degree inverted flare seat on the carb end and a barb fitting on the fuel pump end.

Depending upon usage most of the rear vacuum fittings are 1/4 pipe thread, there are a few I've seen that are 3/8 inch pipe. The 1/4 inch is the most common size.

Cliff (member on forum Cliff R) should be able to fix you up if you can't find what you need locally, Link:

https://cliffshighperformance.com/

I see your in Ohio, Cliff's shop is in Mount Vernon Ohio.

[bhill86]

Thanks for the info, that helps

[Sirrotica]

Originally Posted by bhill86

Thanks for the info, that helps

No problem, I hope that gets you up and running.