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Do the steel fittings come in radius bends? Not the cheap ones. You will pay more for radius bend steel fittings then aluminum.
When you are making big power and you need to maximize your fuel system, you need the least amount of resistance possible. I saw a huge difference in flow when I switched out 90 degree steel fittings with the radius bends.
makes sense i guess. the only 90deg steel fittings i have are the bulkheads on the gas tank in my own car. i was more talking about the fuel filter fittings, and return line stuff. all mine is the aluminum where it can be seen, steel on everything else. ive been getting all my fittings from a distributor here in town called precision industries. they are a huge place with warehouses all over the country. they have an entire house and fitting department, pretty good prices too i might add.