Okay - after talking to a coulple guys I believe that the best setup for the
Corvair as far as the Ellison , is the EFS3. The EFS2 I believe is suited
for powerplants that are 2000 cc or so. The Corvair being 2700-2800 if bored
may require a larger carb. You may have a smooth running engine on the EFS2
but might not get all the power you could have if you had the EFS3. I am
running a 35mm Aerocarb so I dont know if there is a difference in the
funcionality between the two carbs where the 35 mm Aerocarb is suited for the
2800
range. It may just takes some playing with. Bill