Performance additions

Hiya Guys,
Running a standard series 2 Tv 175 but I'm looking to upgrade the exhaust and carburettor for that little extra pull on the hills. At the moment I feel she's being strangled by the standard set up.
I'm running the original carb(MB21 BS5) and also the standard innocenti series 2 exhaust.
I'm not looking to burst the bank as I'm currently hemarraging money on another lambretta project!!
What carburettor and exhaust would be a nice set up with a 175?
Running a standard series 2 Tv 175 but I'm looking to upgrade the exhaust and carburettor for that little extra pull on the hills. At the moment I feel she's being strangled by the standard set up.
I'm running the original carb(MB21 BS5) and also the standard innocenti series 2 exhaust.
I'm not looking to burst the bank as I'm currently hemarraging money on another lambretta project!!
What carburettor and exhaust would be a nice set up with a 175?