I recently bought three of the new Stromberg Big 97s designed for SBCs and similar engines. I have spent weeks trying to get them running and have also taken them to one of the best Stromberg guys in the country. After weeks of research, work, and money spent they still pour fuel into the barrels after the car is turned off. They flood the engine and just leak and leak. Stromberg apparently doesn't have a fix or an answer. They just simply sell a product that does not work. Don't waste your hard earned money and precious time.