Thats a good point, I really need to have another look at this, but I think I'll look for the breather.
An overdue update.
I've found a micro usb cable and got the videos off the phone. We tried a 0-60 on video but it became obvious that my brother was more interested in spinning the wheels and laughing about it

and its really hard to find a perfectly level bit of road here, but it looks like being somewhere between 5.5 and 6 seconds.
Enjoy.
http://www.youtube.com/watch?v=hZeZcZZHifchttp://www.youtube.com/watch?v=lq5YiYwJQ5chttp://www.youtube.com/watch?v=Ba3ZPV6I4KAOn another note, I visited Maynards last night for a rolling road session. Martin (I think was his name) has masses of experience with ECU mapping and seemingly carbs too. I told him I was nervous, and he said we'd not hold the engine on massive load for long
Then we got to mapping the top end and it was seriously nerve racking, I felt like having a breakdown

The floor was getting hot from the long manifolds below, the strong smell of hot paint was making my eyes water, the coolant temp was rising, but it held together, no a drop of oil or water below. I was so proud, he seemed pretty pleased with the result and went off to show his collegue the flat torque curve. I was pretty releaved by the end of it, and the power run seemed tame compared to the torture of earlier. Here are the results, ignore the low spike at the start, that was a gearchange.

There is lots of discussion about rolling road opporators adding a little for happy customers, I had considered asking about this, but I don't think he was really concerned, he described it as a tool for getting the fueling right, and made very little of the end result. You make up your mind about the result.
250ft/lb @ 4725rpm (as you can see)
262bhp @ not sure actually, forgot to ask

I'm really pleased with the improvment in drivability, power, the smoother delivery, and the noise. I think it was well worth it
