4.9 ounces (raced at 5.0)
balances about .9 in front of the axles
polished axles (rear bent 2.5)
aligned so moves 1" over 5 ft (rear wheels seem to rub side of track)
Anything else to do or check or do?
There's lots of things you can do but whether or not you should is another matter.
You say you aligned it. Are you on 3 wheels? Did you bend the dominant front axle? Are you on graphite only? Exactly what do you mean, "rear wheels seem to rub side of track"? Do you mean the rear wheel that follows the Dominant front wheel rubs the rail all the way down to the finish line or the car bounces back and forth off the rail?
Might we see a picture of the car?
I tried to square up the rear wheels, then angled one front wheel to make it pull over to the right one inch over 5ft. Its still on 4 wheels per BSA rules. The rear wheels rubs once the front moves over and touches. I'll try to get pics tonight.
Next, I would buy the magazine, "Build a Winning Pinewood Derby Car" 2013 Edition. I just received 10 of them and they indicated they still have some in stock. The cost is $9,99. The address is Fox Chapel Publishing, 1970 Broad Street, East Petersburg, PA 17520. Phone: 717-560-4703. Fax:717-560-4702. www.FoxChapelPublishing.com. This book is all about speed. Once you and your son read this book a couple of times the basics of the Physics of the Pinewood Derby will be behind you and you can start Fine Tuning the Basics. Yes, the answers are all on Derby talk but the book will give you a permanent record of what you have learned. Lots of Great pictures.
I wish your Team the Very Best.