S3 Throttle probs

Hi Folks.
I have a S3 with the usual throttle linkage, the problem is it is fitted with a twin choke weber that looks like it requires a cable so the ? is
Is there a kit to convert linkage to cable or is there an easy fix that im missin
cheers.

Wot exactley is the problem. I have a webber on my s2 and all works pritty well. I admit the linkage only opens the buterfle to 80 85% of wot it shuld but that justs helps me save fule. Had to fiddle quite a bit with the linkage To get thatmutch pull but no I'll efects yet. Done about 1000 miles on it.