I’m looking for a boat with twins right now, twin 5.7 V8’s to be exact. People on the dock are asking me why I’m not happy with my V6 and pointing out I’ll be using double the fuel to feed two V8’s. My answer is and? You live once, do what makes you happy. I’ll be arriving to the dock in a lot more style with two 5.7 Liters chugging away out thru hall exhaust than my V6. Same deal, if we want to run in 4A that’s our business lol. 4A is well worth the safety and added traction for 0.5 MPG at the most and doesn’t wear anything out according to anyone I know. I drive a 20 foot long V8 powered bus that’s 6,000 pounds. I’m not worried about 0.5 MPG, I’d drive an Accord if I was.
I’ve got a single 5.0 in mine, and with the boat troubles I’ve had on the water, I’d love to have another just so I don’t have to rely on anyone in case one engine goes down.