MG ZR: Cams & Maps

[Dum-Dum]

Good lad for cracking on yourself. Defo strip it yourself as decent machine shop time is uber expensive. Defo remove the valves mate, if you fully strip it they should give it a good dunk in the cleaning tank and that'll clean out all your ports. If they have decent machines (and you have the money) get the valve seats cut back by as much as the head is skimmed by and they can cut the seats and valves so perfectly you wont have to lap them in.