With 3 liters through the MG66 I started to lean it a little this morning at the track..have been getting 9m30 runtimes with a 7mm insert and very rich mix..leaned the hsn in a 1/4 turn and it started to really scream..another 1/4 turn in and it went mad...runtimes jumped to a steady 11m45-11m50..top end is totally insane..I am going to try the 6.5 insert..can anyone confirm that GO are supplying a 6mm insert with the GX series??? I got 6.5 as the smallest in the MG's box..If not I'll be hunting a 6mm down online..

This is the maddest thing I have ever driven..It screams like a banshee after just 3 liters..pinch feels little reduced from brand new..I think the fact GO relaxed the initial pinch on their motors is a fabulous idea..easier on the starter box and less stress on internals period!

Oh how will I wait 2 gallons for the ceramics etc..more to the point how will I keep it on the ground!