<VV> [fastvair] Best 2-Carb Setup

[ScottyGrover at aol.com]

If you are figuring on street driving and want to keep your low-end up,  
stay with 110 heads and use progressive 2-barrels; if you have the money for  
head work, go to 140 valves and seats in the 110 head.  You don't need the  
large ports of the 140 if you are mostly interested in low--speed (street 
and  highway) driving.  
 
Scotty from Hollyweird
 
 
In a message dated 12/31/2010 7:42:35 A.M. Pacific Standard Time,  
jwcorvair at aol.com writes:

Hi,
 
I need to set up an engine on which, because of space constraints, I can  
use only two carbs; one on each head. (This is going in my 66 912 Porvair.) 
My  intention is to use 140 heads with one carb pad on each head blocked off, 
 combustion chambers cleaned up, slant exhaust tubes, and headers. 
Currently, I  run a Rochester 4-barrel on a two runner manifold, but the 
driveability is  poor at best (typical tip in problems). My choices for the future are  
these: 
 
- Keep the current system and completely rework the carb or replace with  a 
Holley.
- Replace the 4-barrel with a two Rochester H carbs that have been  
modified for performance.
- Replace the 4-barrel with two progressive 2-barrel carbs (Holley or  
Weber).
 
I'm not interested in fuel injection at this time. My goal is better  
low-end performance while still retaining some high-end performance. I use the  
car for city driving and would like to set it up for autocrossing.
 
Please share your thoughts on carb ideas, what you have used, and what  
your experiences have been with different systems.
 
Thanks,
Joe White (62 4-door, 66  Porvair)