hey guys i got my a12 up n running as my daily and what to convert to injection for reliability n power, i went on a website and they had all these sizes 50/48/45/43/40mm its a twin weber set up side ways but would rather down ways so the filter stick out the bonnet?

any sugestions?

an

look at the holley efi setups there downdraft

I would expect that any of the EFI ITB's can be used any old way you want, they don't have fuel bowls you need to keep level!
The big issue will be getting a manifold to suit..

would a twin webber be beter thsn a single holley? and being up or down facing maske sny difference?

ive read about injection perfection, anyone put these on a A series

For a daily I would go with the smallest, if you are not revving it to the moon you won't need 45mm+ ITB's.

Actually you could get away with just a single TB for a A12 daily if you aren't looking for performance.

You could make up some 90 degree bends to join the manifold to the ITBs to point them up and out the bonnet. That would be 4 identical pipes and 2 identical flanges.

it will become my daily when the wife gets her leicence back and at the same time want the power there for going up hills and when i need to let off some steam..

and combos i can use like efi webber size, manifold,

You'll have to make a manifold as a twin downdraft weber manifold for A series doesn;t exist

For tunability 1 tb for each pot is best... especially if playing with huge cams

sorry bor asking a nob question but whats TB
and is single better than twin?

TB = Throttle Body.

No single isn't better but it also depends on what you want.

If each pot has it's own throttle body the potential for producing more power is much greater, then you have to sort ignition and cam and exhaust.

I reckon you're going to have to fork out about $3000.00 for a DCOE EFI setup (inc. computer, injectors, linkages etc etc)

Don't mean to drag lagwagon into it all the time but his setup would have cost a fraction of that because he used cheap quad throttle bodies (motorbike) made a manifold and built his own computer.