[Mk2] [Generic] Rev4 na clocks or rev1 tubby?

[leeclark2010]

Am in the process of converting my rev4 n/a to a rev1 turbo engined mongerel and am unsure if I'm better to keep my dials or to swap in the turbo clocks? I'm sure it's probably been covered somewhere but can't see it, I am using the turbo loom from the passenger footwell back if that helps? I know the speedo is cable driven on the turbo and electric on the na but I just want as easy a conversion as possible and while the two are side by side I may as well have one easy job!! If I keep the rev 4 clocks what do I need to convert the speedo drive? Will it get rid of any speed limiter? Many thanks people!!