I'd have to say that a dual SU setup is the most

likely to be reliable. No electrical stuff beyond

the coil to go bad, no relays, and a simple mechanical

fuel pump that you can change on the side of the

road in the dark with a crescent wrench. I'm sure

the others can be just as reliable, but they have

sensors and relays and electric fuel pumps and other

wacky things that simply can't be as reliable as an

SU carb. Also, at least in california, the cars

with the k-jet (the system I'd say is the more

reliable of the two fuel injection systems) have

lots of other weird crap on them for emissions reasons

and those would also make it harder to work on the

car -- my 144 and 164 both have enough space under

the hood to stand inside while working on the mill.

Of course, it is also likely that the SUs will never

exactly be in tune, but that's the trade-off.

I'd also go with an M40 if you are worried about

reliablity.

chris