RE: Aviastar 46?
As Ihave pointed out in my reviews the Aviastar engines have unreliable carbs in some instances. It is a hit or miss issue and Sig is great about correcting any bad carbs but with reliability being so critical to a twin engine project Iwould spend my cash on something like a Thunder Tiger Pro 46 or OS engine. Thunder Tiger GP42 is also a very reliable engine at a modest cost .