Hi Mike,
It is indeed leaded going from the engine no!! What I will say is please don't covert to unleaded!! you will be far better of running unleaded with an additive than converting...trust me. We get lots of folks through the door here that have major issues after converting to run unleaded...pinking...running on and timing! I run all my older cars with unleaded fuel and an additive and no problems here! To change over to unleaded fuel only the head has to come off and have new exhaust seats fitted which will cost about £100 to £150 depending on who does the work.
Hope that helps Mike.
Oz Cooper
Classic Mini Product Manager UK
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