AE-21 with 300 Promax

[apexfx]

well got some more testing done today
1-ae21 with 300 mariner with 28 chopper 6000rpm 81 mph
2-ae21 with 300 promax with 28 chopper 5100 rpm 81 mph
boat #2 had throttle left,he has 1,62
looks like i dont have 1.62 more like 1.85 of so
boat #2 has 8 inch setback
boat #1 has 4 inch setback

[amityray]

probably 1.75:1

most 3.0l either have 1.62:1 or 1.75:1