RE: Kits or scratch plans?
You're looking at $319 for a fun boat engine???? If I were to spend that much money I'd opt for the MAC 21. And every time you get a lean run, you blew about $7 for a special turbo glow plug. The cost of the high nitro fuel that this engine wants is $30+ per gallon. Again, if you plan to get into competitive boat racing and you have the money to spend, by all means go for it. If it's to be a fun boat, my opinion, you're wasting your money. Not to mention the lack of fun you'll have dealing with tuning the engine for optimum performance.