Nice work, Harry! I've always been a fan of this car. When I stopped racing slot cars in 1967, I had two cars that we're my "Last - to - goes"; a Ferrari 250 LM and a Porsche 904.
I run this Carrera 904 in our vintage class with an H+R Jackrabbit motor and 8:28 gearing and it does very well. I've gone to a solid front axle which helps on routed wood tracks. Will post some pics when I get home.
I have one in the CanAm proxy now. It's in 4th place, but can't get past the top 3 Opel GT's who occupy the top positions.
Allan