[Fred T]

Yes, you can, but there are some hazards/risks involved with using rubber fuel line.

Sealing is a problem when you don't use hose fittings. Just slipping the hose on steel tube is asking for leaks, many times they are not visible. I recommend using double clamps and Hylomar sealant when not using hose fittings.

Rubber hose will move around and wear. It needs standoffs to keep it in place.

Regular inspection for cracks and wear is needed. Should be done at every oil and lube.

I recommend only short runs of rubber fuel line. Bending steel line isn't that difficult, it can be done with a tubular spring bender that costs a couple of bucks. You can buy the line at an auto parts store.