08-02-2018, 11:37 AM
You have the cowl so you can work out the radius from there Arthur, the part that bolts to the chassis is flat, then the curve starts where it meets the cowl. If you bend a bit of flat bar that is an inch wider than the finished horn, then cut the horn shape from the blank on a bias you will create the twist that you need at the same time.
Black Art Enthusiast