For the OP: The puddling issue is no joke. When I got my STR12 the top had been repaired twice. I found a billet CNC top at the nats in 2004 but the goys that made them don't have anymore (I tried to buy an extra). Contrary to what has been said here, I took another STR12 user's advice and had the modifications in the Direct Connection motor book done inside the manifold. That seems to have solved the puddling issue for me. I drive this as a street car. I'm using 2 500 Edelbrock AFBs both with chokes (this ain't an in line 2x4 set up and for the most part each carb feeds 4 cylinders, so setting up the carbs different means different mix for the cylinders on each side). As stated previously it is one cold natured set up - be prepared to let it come up to operating temp by the temp gauge before you take off. Once it's warm it works like a dream. They told me I couldn't run this on the street but after 15 years and 20,000 miles I beg to differ! Around town and on the highway for 4-500 mile road trip no problem. If I were replacing my carbs or starting fresh, I think I would try the new Edelbrock AVS II 500s for better atomization. I stuck in a photo that shows the inside of the manifold for the guys asking about how it works as far as runners. If you are running an automatic the linkage is a bit more complicated. This shows how we fabbed my linkage - I can post more linkage photos if it helps.
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