Probably, but I'd narrow it down to 12" or so. It'll be equal to a 90cc if the wood is small enough. A bigger saw doesn't cut any faster until you get into bigger wood and start utilizing the extra available torque.
I would say since your 346 is ported if will be faster up to say 14" to 16". When I gets to 20" or bigger the 70cc class shines. Ported of course. I know that in 20" buried wood a stock 460 was a little faster than a ported 562 when I really leaned on it.