I'm trying to figure out the best, easiest, safest, and most convenient way to run the fuel line in my Nova. I have it pretty well figured out from the tank to the front subframe, but that's where I can't quite decide what to do. The way I see it is I have three options: run it inboard of the frame rail, inside the frame rail, or outboard of the frame rail. Running it inside the frame rail looks like a pain, so I'm eliminating that option right off the bat. That leaves me having to decide between inboard and outboard. With the small block, I had it inboard, with insulation so that the headers wouldn't cook my fuel. But now that I have a big block and accordingly bigger headers, there's much less room where I had the fuel line before. That leaves me thinking about running the fuel line outboard of the frame rail.
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All fuel tanks, lines, pumps, valves etc., must be outside of the driver’s compartment and within the confines of the frame and/or steel body.
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If I go outboard, it would definitely NOT be within the confines of the frame, but I think it could still be considered to be within the confines of the steel body. BUT that's just my opinion, which I doubt carries any weight with tech inspectors. Is aluminum hard line mounted on the outside of the frame rail legal?
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Fuel lines (except steel braided lines) in flywheel/bellhousing area must be enclosed in a 16-inch (40.6 cm) length of steel tubing, 1/8-inch (3.2 mm) minimum wall thickness
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If I go outboard, it seems to me the fuel line wouldn't be in the flywheel/bellhousing area, and therefore would not be required to have the 1/8" wall steel tubing shield around it. Instead, it would have two thicknesses of frame steel protecting it from a flywheel/flexplate explosion. Does that sound reasonable and legal?