Hello:
I have a 1981 Glastron SSV 194 w/ a 228hp, 305 V-8.
The guy I bought it from replaced the upper drive unit with one from a 165hp inline 6. The inline 6 gear ratio is 1.62 and the V-8 ratio is 1.47. I asked and he said he didn't change the gears, so I'm assuming that I am running 1.62...