I had a Weber (new) fitted to my S3 2.25 petrol by LVS after they overhauled the motor for me.
Starts very well (needs the choke every cold start though), runs and idles well (500rpm easily), top end performance (if you can use that word in the same sentence as 2.25 LR engine) is good. Cost about $300 from memory. I would fit one again.
Regards,

