Been to the rolling road at APT today to find out how many ponies went missing after rebuilding my head.

On the outset, things look good! It's no worse than it was before (unless 4bhp counts ), but slightly annoying is that it's no better. In fact, it looks like I put it together right, which I'm more proud of!

Made 236 at the flywheel, which was a bit pants, and, that naughty fuelling problem is back again. In fact, it's now leaner than it was before.

My simplistic understanding of the situation is that as the head's now actually flowing some gas, it's naturally got more air going in than fuel, so as it was 'ok' before, it's going to be lean now.

Graphs are below for advice, opinions, and general analysis: