Yes I know

[Dave S]

I should not be askin this ?.....A boat..... Fountan….2 2/5s...….set at low timming…….I like to run 25 btc…..I can EyE ball it on the trigger plate......but this one ps.... about 20 btc……..so some one set it...… mild/cool..for longer life? A wast of gas never getting to max BTUs/ fuel use? no red/white box...…..longer life over gas use? thanks dave,,,,,,I know if I set my advance plate on my MK 20 h too low it would not go.....

[Dave S]

So......Merc call for all different timing #s...….which is real?......Witch....with a BROOM.....space me timmye…….

[Motv18]

Might have timed slow hole....some race fuels claim faster burn rates less time

[Dave S]

Thanks for the reply Motv 18 I left it as it was …..not my boat or motors Just helping some one out.....

[Merc 2.5]

20 won't hurt nothin. Prob end up with little more carbon build up after awhile