When the 'FLATTIE' cried enough is enough it was time to do a bit of to her. So here she is in the shop getting the mains tunnel bored , the valve seats recut and the block bored to suit the pistons I had. The cam in there had been reground by persons unknown and the lobes were allover the place, with as much as 20 thou difference in lift between some lobes. Not worn off, just not reground well. Now we have a nice new ISKY 400 JR to go in , this should make her sit up and take notice. The main problem was when a valve guide retainer came unglued at revs it caused an bit of damage to the block , wearing out the guide tunnel so this is another block we're now using .