I decided to follow the advice to upgrade my TBs to 21 front and 26 MM rear. The car is 1973 911T and is strictly street (incl. many potholes) driven. Aktuality I searched I did not find any experience or recomendation of the specific type of TB. Could you please help me to decide and share what are good TBs and where should I go to buy them?

Thank you,