Dual down draft Carb selection for 2056 Options

[technicalninja]

I'm looking at the Empi dual down draft carb kits and had a quick question regarding differences in the carbs themselves.

It looks like they have HPMX or Dual D carbs available.

Which one would you choose?

Should I lean towards real Webers or Dellotos?

The intention here is to use the kit in its stock form initially and later change to port fuel injection using the carbs as throttle bodies much like MB911 is doing with his EFI conversion.

http://www.914world.com/bbs2/index.php?showtopic=363246

Being able to remove everything in the bores is critical for me. No fixed boosters or venturis is a requirement.

I'm planning on starting with an 8.5-9.0 compression 2056 with a webcam #86.
I am planning on having the final engine as a 96mm bore/78mm stroke, but this will be in the future.
I believe I should start with 44 mm carbs instead of 40.

Suggestions, tips, and opinions would be greatly appreciated.

[rhodyguy]

Or 32s in 40s. The Venturi size is the key. Save your dough and work the 40s. A wrecked car I bought had 40s. I put the drivetrain in my car. The engine ran well. Ran out of steam at about 5.8 to 6k flat out on I-5 in Northern California returning home from the Camarillo WCR. I was focused on the road not the speedo. So the speed? (IMG:style_emoticons/default/confused24.gif) It was plenty fast for me.

[930cabman]

Or 32s in 40s. The Venturi size is the key. Save your dough and work the 40s. A wrecked car I bought had 40s. I put the drivetrain in my car. The engine ran well. Ran out of steam at about 5.8 to 6k flat out on I-5 in Northern California returning home from the Camarillo WCR. I was focused on the road not the speedo. So the speed? (IMG:style_emoticons/default/confused24.gif) It was plenty fast for me.

Did the 40's have 32 vents? Currently I am running 28's and she runs ok, but considering going to 32's. TIA

[nditiz1]

Did the 40's have 32 vents? Currently I am running 28's and she runs ok, but considering going to 32's. TIA

What are you trying to accomplish by moving up in vents? If it is to move the power band then 30's or 32's will work. 28 to 32 is quite a jump. You will lose the low end punch.