Currently running a single 48mm Dellorto sidedraft on my 2l Pinto.
Lots of mods.. big valves, big cam, big ports ++ etc etc.
it runs well on the single 48mm. making around 155-60hp at the flywheel.
My only question is, would twin 40mm's offer any more advantage over the 48mm?
Have been offerd a set of 40's cheap from a mate, but unsure if its even worth it.
Cheers