Hi

Dodgeman & L18_B110 know their stuff.

I just want add a couple of things,being a Carby guy.

The biggest problem with SU carbs besides the excessive wear they are prone to in the throttle shafts & bushes which happens because they are both made out of brass,(this can be fixed permanantly by installing teflon bushes & new shafts) is LINKAGE SETUPS thats where the myth comes from.

The "coming out of tune thing" is because the majority of people out there using multiple SU's have absloutly disgusting linkage setups. You can NOT tune and balance any multiple carb setup which has crap linkages.

Always use rosejoints, high quality thottle arms and correct tension return springs on each carb(SU). Theres only two main jet sizes for SU's,90thou & 100 thou,depending on the model. There are many metering pins. Once you get the pins right and good linkage system SU's are excellent.

Theres a lot less stuffing around with a 32/36 weber, and they are a good carb so dont go chucking your DGV just yet.They are very low maintanence once jetted correctly.

As for the Hitachi's (SU type) definatly dont throw them out. They are original equipment, and in my opinion work better than a lot of the SU models. The kits are getting very expensive for them.

Anyway, hope that shed some light.

P.S LINKAGES!!!!!!!!!!!