How much is too much dual quad

318willrun said

If you are going to put dual quads on and have the 2 600's, put them on and try them. Here is my list why.

1. they are vacuum secondary, so on the initial hit it's only 600 cfms. So would a 600 Double Pumper be too much for your motor?? Obviously the answer is no.
2. the vacuum secondary's will open as the motor calls for it
3. Only gas forced in the engine is by the accelerator pumps. Carbs are not forced induction. The engine syphons gas and air into the cylinders.
   
4. Do you know how much CFM's are placed on top of a stock 340 6 pack?? Hmmm....

Click to expand...

Ya it's all about the "coolness factor" Good thing the 6 pack set ups had vacuum outside carbs. They really couldn't use or didn't need all that cfm.