The venolia's were supposed to be Fully machined and ready to install. That was what I understood I was paying for and to be honest they were not cheap. The lump is not too high, and not as high as some of the Jahns pop ups I have seen. I think the problem is that the lumps are machined right to the edge of the piston and the other lumps that I have seen are set in from the edge a little bit. I have to make a sheet metal template of the combustion chambers to bolt on the head and sort out what has to be done. The lumps are not that big so my fear is that to fix it will require taking so much off the lump off from the edge that there will be nothing left. The other problem is that I would have to find someone who has a lather or mill that can do the remachining, I may just call venolia's and see if they would be willing to do it. it is times like this I really wish Jahns was still in business
