jeffs4139

iTrader: (1)

bought a new 250 blower shop blower looking to see what people are running for a carb/carbs... also looking to run a mild cam with wet exhaust any suggestions.. right now have a almost bone stock 502 in the boat... i appreciate the input..

bcfountain

i ran a 1050 domanator on that same blower.i was running the old merc 525 blower cam.

RunninHotRacing163.1

Dominator ............

MILD THUNDER

iTrader: (3)

Yup, 1050 dominator. If you need to purchase a carb, i would call dean nickerson. Many times you can buy a carb setup for your application shipped to you for not much more than a stock holley from jegs. Nickerson has lots of experiance with the 250 blower setups.

With this blower combo, i have seen all different types of carb setups as for jetting. Merc 525SC used 98 jets all four corners, with a 6.5 powervalve in front. Doesnt make much sense though, i would think without the powervalve in the back, you'd want bigger jets in the back, but who knows.

If you are carbing yourself, i'd start with 6.5 power valves front and rear, and 98F and 98R. You will probably be fat, but better to start rich and lean out from there. Keep an eye on the plug readings on the #1,2,7, and 8 cylinders. I think #7 and #8 will be the leanest on that setup, but i'd check front cylinders too.

jeffs4139

iTrader: (1)

thanks for that input... i will give him a call

RunninHotRacing163.1

Jeff this might work for ya , give this cat a call hes on the OSO board ..

northernoffshore
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