WaynieZ,
1. Your decision to use Swagelok fittings and tubing for a pro touring fuel system is brilliant. Not cheap, but brilliant.
2. I have worked 26 years in the nuclear world where we use Swagelok extensively due to the double ferrule design of the fitting. We run 2235 +/- 15 psig on these fittings connected directly to the reactor vessel seal table!
3. I used Swagelok extensively on my 68 Camaro including the entire fuel system. I even had Swagelok make two custom fittings for my fuel filter.
4. All the above being said, I have three comments.
A. Run your exhaust first. At least mock it up so you can ensure the fuel lines are at least two inches away.
B. Swagelok has custom length hoses that you pick both end designs, not too expensive, and killer quality. Stay with Swagelok throughout. Don't know what hose you are running in the pictures you provided but it does not appear to be Swagelok.
C. When you cut Swagelok tubing, progress only 1/8 turn on your tubing cutter, then make two "rounds", then progress with another 1/8 turn and so forth. This is per Swagelok technical.
I cannot comment on your issue you asked about simply because I do not fully understand, but if it would help, I could send pics of my 68 Camaro undercarriage which would include DSE quadralink with DSE fuel tank, 3" exhaust, and FULL Swagelok throughout. It's up to you..,
Hang in there and let me know if I need to jack the car and send pics..
No worries, either way.
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