I would pull all the plugs and hoses to get the water out and perhaps put a heater or trouble light under the engine cover. I don't think you need to go the antifreeze route if your temps are only going down to the mid to upper 20's. What are the high temps you are looking at?
REBUILDING HOLLEY MARINE 4160 CARBURETORS - $199 DELIVERED
GENUINE MARINE HOLLEY KIT USED - INCLUDES POWER VALVE UPDATE
LED TRAILER LIGHTS, LUG NUTS SPARE TIRE CARRIERS, SAFETY CABLES....
Originally Posted by Bouyhead
Installed my carb that was rebuilt by thatsmrmastsercraft, Thanks Peter!! Hot or cold this boat starts and runs like it fuel injected.