I've had Oily's 285M setup in an early Superlight and it was by far the best 7 I ever had. Responsive, plenty of torques, easy to drive on the road and bonkers enough on track. Since then, I've had a variety of other cars, including 2 x R500s. The R500s had the standard 1144s and roller barrels. TBH, although fantastic to drive anywhere, they were a pain on the road, partly due to the (relatively) lower mid-range torque, plus the trigger throttle make town driving 'interesting'. On the open road, you either use the power (and p1$$ off a lot of other road users), or spend your time wondering when the next failure might happen and land you with an engine rebuild (didn't happen to me, but I still worried). Anyhoo - my advice is to listen to Oily - he knows his stuff! If you decide you 'need' to play the numbers game, though, I have a 2180 cam in the drawer, that I'll probably never use now... Cheers - Simon