Holley has a VERY new universal kit that has everything you will need to adapt to a port fuel injection setup minus the intake manifold if you want to go that way.
Another option is to call
www.force-efi.com for a quote. They have a "shorty" throttle body that is so important for hood clearance on Cobra's AND the the super large injectors needed for blown applications. too. When using a victor jr. maifold the shorty throttle body will give most cobras hood clerance.
Mohuska is right that you will most likely have to switch over to a crank trigger system, though Force Fuel tells me you can use a conventional ignition setup. That is a factor for me because I don't want to pitch my MSD stuff. I too plan on switching over soon. And with the cam gear wear problem discussed on these pages if I were starting fresh a crank trigger system would be a smart option I would think.
cobrashock