Rod Penrose's New car project

Pekka , I will put the manifold on the flow bench and let you know the results . I will also modify the manifold and re flow it to see what type of difference it makes .
I have removed the engine and dismantled it to find it all good and ready to re-assemble . I would like to know why my piston tops are a different colour . the engine was shut down at full throttle @ 150 mph and the EGT difference between the 2 cylinders was about 55 degrees . I use methanol and I don't know why the difference . I am not worried as when I clean the pistons they will all look brand new . I also need to know why the piston rings move in the pistons . I set them a certain way and when I removed all 4 pistons the rings were all over the place and no 2 were the same . I had 118 psi in # 1 , 120 in # 2 , 120 in # 3 and 128 in cyl # 4 . I suspect the difference in compression is due to the position of the rings as the best compression was in the cylinder with the best set rings . I have vacuum tested the heads and the valves are all perfect . When I last freshened the engine with these new rings my crankcase pressure was @ about 1.2 psi , now after dyno time and track time it has been slowly creeping up to now about 7 psi , ROD.