Had the same problem on a Stutz and on other cars too. The British SU carb seems to work good on other cars. The Jaguar 3,8 has the same bore as the Stutz and should work. These are adjutable to some degree, easyest on the older ones. Just invent a way to hook it on and try. The Marvel carb from the bigger Buicks from 33-34 should also work. They are made of the same material, and usually need work to funcktion, but are easier to find in useable codition.