Using an unmodified ex EFI 2.0L Pinto with twin 40's. Anyone out there with the same set up able to advize me on what size jets, emulsion tubes etc? Will a mechanical fuel pump cope or should I go the electric route?

Hi Ian
What you need is this site. It's chock full of usefull info and even has a little program to download to select jet sizes for given engines. Brill. Also has good articles on setting up DCOE's and DHLA's. Enjoy!
http://hometown.aol.com/dvandrews/index.htm

Cheers Chris.

BEWARE that you don't get air leakage between inlet manifold and head.
2.0 pinto (Carb) has round inlet ports & most twin Weber manifolds are made only for these.
2.0 EFI pinto's have pear shaped inlet ports on head AND manifold to accomodate the injectors and the manifolds/head are NOT interchangeable.

If you want the EFI engine to go faster see about getting the ECU re-chipped!, and maybe an american 40/40 camshaft.