Both saw's were allowed to warm up for about 5 minutes before I started the test.  I started porting Motorcross Bikes 30 years ago. When the 4 stroke's took over I started Modification's on giant RC aircraft engine's which are basically chain saw engines's and chain saw's. Ported my Friend's 372XP 4 years ago, that's were it started with chain saw's. The Hand Grip is 30% larger than stock. It is wrapped in rubberized cork tape and has a very durable clear Gel wrap over that. Non Slip even when Wet and take's out over 50% of the engine's vibration's in addition to being softer and easier to handle. I use Heat Barrier Wrap under the Top Cover to keep the Muffler from melting/wraping the top cover. All Husky Decals have a heavy 20mil 3M clear film over them to keep them in place and keep the saw looking new, longer. This saw is highly modified, flows 3 time's more air than stock. and add's over 1hp.  I can install Ceramic Hybrid bearings to full ceramic's on the crankshaft and  full rod ceramic roller bearings. Full Ceramic Roller bearing can also be installed on the Clutch. The Ceramic bearing's allow these saw's to run on less oil and rev so fast it will make you smile like a 9 year old boy that just got his first BB gun!! They also allow these saw's to run on 120:1 Royal Purple TCW III Full Synthetic Racing Oil. This saw run's on 70:1, it utilize's the stock bearing's, you do not need to run the stock 32:1 oil ratio. 1.5mm was taken of the base of the cylinder to raise compression, you will need to use the compression release!  Modified intake and exhaust port and port runners. Entire intake and exhaust is flow matched, even the gasket's. All gaskets are sprayed with Permatex copper gasket sealant. Exhaust uses 2 gaskets instead of 1. Intake and exhaust flange's are decked flat as is the base of the muffler, and the rubber intake boot. These saw's have ZERO airleak's which are common on a lot of saw's, and kill the engine. Carb's are flow matched and intake rubber housing's are enlarged, one size up on both high and low speed jets. Limiters are removed. Intake is enlarged and textured to increase flow and mixing.  Combustion chamber and exhaust port is polished. These engine's use E3 Diamond Fire Platinum spark plugs. I use a 2 port muffler. These engine's need BACK PRESSURE. You can't take a stock muffler and just add a big hole in the side of the muffler and expect it to run better. Short of building an expansion chamber this is the best all around muffler for sawing wood. I can substute this performance muffler for the NON EPA hollow spark arrestor muffler if you wish. I usually have 20 hour's in these saw's as a base Port/Performance Job. This engine has 10 hours run time and is Broke in and come's ready to work, no break in required. I will enclude enough Royal Purple to mix 2 gallons of fuel until you can get some. I am encluding a Husqvarna hard case, and all paperwork and tools that come with the stock saw. You will have your choice one of  3 air filter's. One is for Maximum Filtration, one for non sandy area's and one for snow use. Take your pick of ONE of the 3. The SUGI HARA bar is included as well and is the BEST quality bar on the market! I sell these 346xp's local for $999.00 in this version. Ceramic bearing version's start at $1200.00. This will be the best and last saw you will buy, just take care of the Air Filter and use the exact Royal Purple Oil I send with a fuel stabilizer and use clean premium fuel. If you want a buy it now, make me an offer, nothing under $700 will be considered. Stock Husqvarna 346XP's retail is $599 if you can even find one local. I have this saw for sale local as well, so it may be pulled at anytime.