Join Date: Dec 2006
Location: Severna Park, MD
I would stick with the 1403. What are the symptoms at idle? When you state you can't get Idle circuit to work after cleaning etc. What is you vacuum at Idle?
The Pros?, you've already stated.
Not sure these are CONs, so much as they are differences.
1. As mentioned, more tuned for economy
2. It's has higher CFM
3. May need to be tuned via metering rod changes for optimum efficiency with your particular engine mods.
You state you are not interested in seeking out the last ounce of HP, while this may be true for you. you still need to tune any carb to work "happily" with any given engine. The only way to really know is to check the AFR at idle, mid-range, and WOT. It's just way it is.....
64 1/2 Poppy Red Cvt. Resto-Mod
333 Cu.in. T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums
Severna Park, Maryland
Last edited by kenash; 08-07-2019 at 01:11 PM.