Gas Tank Venting for 1969

Q: Gas Tank Venting for 1969

I just picked up a 1969 Firebird w/ a 350 2bbl, 350 turbo Trans, PDB, PS, & A/C. This is the third 1969 I’ve owned but the first 350. I was removing the gas tank to replace the trunk and noticed that this tank doesn’t have the little vent tube that the 400s had just below the cap. Is the vent tube unique to the 400s or the H.O.s?

A: I have an original 350 2-barrel car (convertible) and I just checked it today. There is a small tube which connects to the filler tube just below the cap. The tube is about 6-8 inches long, it turns around in a “U” and then connects to a fitting just above the filler tube on the body. Hope this helps.

A: I have had a few 69s with and wthout the tank vent, checked my friends OHC-6, A/C car and it has one. So not just 400 cars got this I think its a production change early in the year but I believe that a/c cars got it (never say ALL) regardless of motor.

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