14.75 x 15.5 I believe is the prop... I change to a ACME 2271 (if I remember correctly) and it is even better for accel, surf holding and lower revs at boarding speeds.
2008 Mastercraft 40th Anniversary X-star
1981 J-craft 19 long deck ski boat w/200 Mercury Black Max (gas guzzler)
2008 Touareg V8 Galapagos Metallic, Sienna leather, Execline, Technology pkg, Sports pkg,Class III hitch.
2015 Audi A3 2.0t Quattro Technik S-line in Glacier White and 19's