G'day Mark..sorry I should have named the pics top pic is piston ,then inlet port with inlet manifold on ,last pic is exhaust port..Im still working on transfer ports but wll load a pic when done...you need to chamfer ports so you dont catch a ring in the port ,some also say a port with no chamfer and just a sharp lip will wipe oil off the ring..There is lots of good stuff on the net to read if you google porting a 2T but what works on one kind of 2T does not mean it will work on every 2T thats the hard part working out what works on what lol, With the carby there is a good site on how to make a big bore carb but cant seem to find it this min...Yep i will get some pics of what tools I use.....here is a pic of carby and muff.. Cheers Chris.... [Linked Image]