I recently asked about plug wires,well I've changed all the plug wires to 7mm solid core. Did not make a difference at all. So i pulled all the cylinders found i have 1 bad intake valve ,1 bad exhaust valve and there was little to no compression. plus it smoked pretty bad. So does any body have cylinders, rings,& pistons. I could probably use my existing cylinders but I think they have been bored 15 over. Also has anybody had problems seating the rings on a gpu.