It will work fine with one fuel line as I'm sure thousands were built that way.
Oger continues to disseminate incorrect info.
All 300hp/350 & QJ/396s had the large filter with return line to the tank, not the fuel pump. This is shown in the Assembly Instruction Manual and numerous original road test photos. A/C had nothing to do with it.
If you are inclined to start reading, get a '69 Assembly manual. You will find what you need in section L34-35, pages B1 & B2. Or section L48 page A3. If you would rather look at pictures try Popular Hot Rodding, April 1969 page 23. No A/C, QJ with fuel filter & return line.
I looked for this in all of my 67-69 literature. It was evidently not used in 67-68. It is not shown in the 1969 or 1970 shop manuals, The only mention is in the 1969 New Product Training Manual. It states that Chevelle, Camaro and Nova with 350 or 396 engines would feature a "vapor return line" to the fuel tank. Not entirely accurate but that is all I found.
My 70 BB El Camino with air had the return line on the fuel pump. I looked at another without air it had none. I have no idea what Chev was up to but it looks like the Camaros had a vaper line coming out of the filter. Does your book show any other car with a filter in front of the Qjet.
think about it,(not to be sarcastic)if the car came with air (im asuming air pump)then it has emission equipment on it sooo the vaper return line is just another peice of emission equipment. right? or GM dod this because when the A/C kicks on the silinoid open the throttle a litlle more causing more polution so to please the EPA/GOVERNMENT they would put a return line on to cansel out the extra emissions. sound good ,but who the hell cares anyway ,just run the pig.
[This message has been edited by sldhd (edited 05-13-2001).]