I had a 36/32 DGV Weber 2 barrel on a Brel rebuilt motor that had a Turner HP head on it a number of years ago. No matter what I tried, I could never get the carb adjusted. It always ran too rich. Gas mileage was attrocious and I even had problems with the carb icing over on damp, chilly mornings. From the standpoint of performance, what little, and I mean little I gained in the way of horsepower was lost on 10 mpg economy. In the end I bought a new Zenith, swapped intakes and learned to love the slow lane of life.
Oh, and when I had the 36/32 on the truck I also had a special Pierce heated intake to help with the icing. I also had a set of Clifford headers and a K&N air filter. I was always uncomfortable with the K&N sitting up there on top of the carb because I never felt it was adequately protected from water and mud. I even went so far as to use the K&N foam around the filter for added protection.
I know there are others who have had different experiences with that Weber and I also know that the carb that was on the early 110's and 90's was a better choice (34 DTML IIRC) so it really comes down to trying it to see if it fits your driving style.
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