need some advice, running 3/8" fuel line, how to run, what to use

Then let’s see your current source at that price, the brand of hose you’re using, and tell us how many feet you actually needed.

Might as well throw in the cost of the proper connectors and hose straps while you’re at it.

I've shopped around, I'm $120 plus shipping to get 3/8 stainless. I can get about 16' of 6 an for the same price. Yes, I have to buy a few fittings, but the way I see it, it's worth it. I already mangled one stainless line. If I need to modify the set up I can do it easily. A stainless line would have to be modified with an expensive tool and buy fittings too.