your trouble is in the jug height. Your compression is too low because of the giant squish. For it all to work right the piston at BDC MUST be equal to the bottom of the lowest port. That will be the correct jug height. Then depending on your head the Cly may need to be milled to get the proper deck height. You do want between .4-1.0mm The smaller the squish the higher the octane rating you n I run fine on 90oct, and a .8mm squish on two different kits. Get your squish right, and your rpm's and power will climb. Get the jug height, and post what the piston/deck height is.