Gareth,
Interesting. I put 4.25 Litres in with a standard sump to get up to the original full mark on the dipstick.
I'll be back with more questions I'm sure, but off to do the VSCC Bowland rally on Saturday in Lancashire first. Shame speedo drive from meadows gearbox not working, so that's my next job.
I'd be really interested to see a fully prepared series 1 CC-engined beast, and I used to live a stone's through from Harewood, but now am in Aberdeen.