If I had a dollar for every time I thought about putting a centrifugal on the car while struggling to build header I would have $0 in the build. It is not easy for a first project. A 302 based engine would have been a ton easier. I am not too thrilled with my welding, but it all looked good with just tack welds. It was the finish welds that suck. I was too afraid to grind them smooth for fear of cracks.