I'm looking at building a1776cc engine for my bug and I'm after any recommendations you guys have for dual carby setups. Also are there any specific sizes needed for this engine size.
Thanks
Mitch

G'day

read the tech articles 101 and 102 to get some ideas forst

Personally I prefer Weber IDF or Dellorto DRLA type carbs.
You can change venturis to suit your motor.

I would be suggesting one of the carbs I have mentioned with a 40 body and a 32 vent

Try to select carbies that are one barrel per cylinder, this way you will avoid all the issues that arise when you use a single barrel carb on each head, webers and dellortos are a very reliable carby and I have three sets in total , they stay in tune as long as you have the linkages sorted, with a mild 1776 I would run a set of 40mm idf webers, these should have 28mm chokes fitted standard, if you put larger chokes than 28mm in you move the power band up from the bottom end and add to the top end, you will loose torque if the chokes are to large for your application, you would be able to use a vacuum advance distributor with these carbs, you need to think about what other mods you would like to make when you build the engine as these will have influence over the final set up of the carbs. keep in mind that you could build a 1915 for the same money as a 1776. try this link. http://www.aircooled.net/vw-carburetor-tech/ 

Ummmm........ The above link is the one I forgot to post

I'd also go 40 Weber IDF or 40 Dellorto DRLA with 28mm venturis. Depending on the combo, stock or ported heads, cam and exhaust. All the engine components need to be considered as a combination that need to work together. If stock or near stock heads then 36 mm carbs could be considered.