well i dont know how you would go about timing it cos you would need to sort out the ignition as the CA has a computer to do all the work and you could try to adapt a dizzy to it or run a crank angle sensor and then run that to a module or something to do the rest of the work for you

i would go for 45s and use the standard manifold (bit with the butterlfys in it) and try to mount the webers to that by weldin the weber flanges onto it

i was thinking about this setup but then i figured out all the iwring so im goin for DET