Morning to you all,
By a chance read of an eBay advert, a conversation with the advertiser and a trawl of the GOV.UK Companies Register, I can confirm that Slipstream Tuning, Sevenoaks, run by Martin Sweet, went into voluntary liquidation on 31/7/2019 and was finally wound up on 8/5/2022. So no more crank rebuilds there!
I can find no direct contact details for Martin, I suspect he wants some peace and quiet to do what he wants?
Good health, Bill