1988 Evinrude 225 experts needed!

OK guys, I dug deep enough to find the trouble, I have a few bad reed valves, sombody had put fiberglass racing valves in this motor. I have a new set of 6 blocks (stock) coming in the morning for $150. Does this sound like a good price ? Anyway thanks for pointing me in the right direction, and will let ya all know how she runs when I get her back together..........Thanks.........HS