I spent almost a month trying to decide what to use. 32/36, 38, BBD, converting a 38 to progressive.... Finally settled on a 38 and running it as is. Seems to be the best option. I was not willing to spend the $400-500 on the real deal and found what I'm running on Amazon. Normally I would not say to buy any car parts from Amazon, but at work we've purchased Chinese carburetors from them and they worked surprisingly well, so I figured I'd give it a go. Bought a BBD for $90 for a 318 I had and now a Weber 38 for $110. Both almost perfect out of the box. If anyone is thinking about a knockoff Weber, I'd say go for it.