Rebuild questions, '78, Johnson, 150 hp

[harrylarson]

Hello, I have several questions about re-assembling my '78, Johnson, 150 hp, I had all six cylinders rebored and I have six new Wiseco pistons. First, is there somewhere I can find the ring gap for the pistons and motor? I tried the Wiseco website and it wasn't to specific. Second, is the rubber (spaghetti) seal between the two case halves no longer available and the gel seal is all that's required? Third, should I consider replacing the seals around the crank that separate each cylinder, or if they look OK don't bother? I am planning on replacing the two O-ring seals at top and bottom of crank. Anything else? Thanks.