MCW
Somebody's talking crap here & it ain't the tree!
IME yes, or maybe even longer, it's fiddly arse stuff (but well worth the effort) and I'm not an expert in any way, shape or form.
I've seen what carby work can do to a saw and it blew me away. Stock saws are hampered a fair bit by the EPA. I won't name drop but a fellow member here (he's a short bloke) played with a carby on a saw I once owned. I saw this saw run later on and said "So you've ported it then?".
Actually he hadn't. The massive improvement was just carby alone. Even stock saws can take way more fuel than most people think.
I was quite literally blown away. He wasn't. He'd seen it all before hundreds of times
The inside of the carb was a work of art.