Hey Taurus Flyer,<div>Thanks for the inputs, my reluctunce to just them up is due to not being able to change back to SE at a later stage.  The 61 is the old black head MVVS with quite a strange carb on it, will give that a try in RE and see what it will do.  </div><div>I was told when I acquired my pattern ship that it was a Summit, never been confirmed, I have had to put a lot of work into getting it flying nicely as the wing dowels in the fuse had been worn and the wing incidences were all over the place.  Anyways it was flying very well and I was really enjoying it.  The issue with the plane is the tank is mounted in on the CG, so I will need to look at a regulated setup with a cline I have, I was considering taping the backplate for pressure, yours looks like muffler pressure, is this ok with the cline.</div><div>What fuel are you using, I know the MVVS like castor and little to no nitro, this could be a problem as I try to use 20% in everything.</div>