what carb can i use instead of piersburg

can i put a different carb on the mk1 driver instead of the original

You can! fit a weber carb, they are manual choke and benefits are great.
Also depends on what engine size you have to chose which type of weber you need.

golf driver 1.3

One here
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=110026245003&ssPageName=STRK:MEWA:IT&ih=001

Ask the seller if it is jetted for the 1.1 or 1.3, if for 1.3, make sure everything is with the carb and also replace the carburettor flange and ask if he can supply some fitting instructions with it :wink:

that carb is for a 1.1, i asked him, but to be honest iv had SUCH bad experience with secondhand carbs imnot even going to bother, just buy a new one, spend themoney once to get it right, plus that one looks like its done a fair few miles looking at its condition...