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This is mine and you see the new lines I think run up the middle of the intake. You would think with the heat from the manifold you might get some vapor lock action.
You can do like I did. Run a 6 AN tee off the front of the pass side fuel rail (or a Y splitter further upstream) and run it over to the front of the driver's side rail. (So fuel has primary feed to both rails.) Fuel regulator on the rear has dual fuel feeds (one from each rail, can use a small aeromotive unit to mount onto the rail directly on one side) and single return under the plenum, as you have demonstrated in the photo above.
I did it not to keep the fuel cool as much as make sure that both rails had a primary feed before the regulator/return but it also accomplishes your goal of keeping the lines off the intake base which does get pretty warm.
Edit: However I now see the front of the rails have been welded up, maybe you can get TPiS to swap those out.
This is mine and you see the new lines I think run up the middle of the intake. You would think with the heat from the manifold you might get some vapor lock action.
This is mine and you see the new lines I think run up the middle of the intake.
there are other options..since it's apart make your own with 3/8 hard line to teflon core braided -6. My solution is similar to an LTx. and the valve covers can be removed w/out disconnecting the fuel lines.