Yamaha small hub racing prop fitment?

[Bullet1750]

Hi I have a Yamaha small hub race prop that I wish to finally try on my boat, the only problem is using the standard Yamaha thrust washer the tips of the prop hit the trim tab. Is there another trim tab or thrust washer I should use?

Cheers Craig

Motor is a 1986 220HP

[Bullet1750]

If I look at the parts diagram for a 1987 225 Excell lower leg unit 1 it shows the high performance prop and a different thrust washer and trim tab but does not list the parts???