As I have been adding things here and there to the tip of the day I have found some links that I thought would be useful for everyone to have. Will be editing and adding to it from time to time!
http://mustang.webhostme.com/wheels.asp
for checking what different wheel styles will look like on your car!
http://www.mustangdecoder.com/
vin and door plate decoder disk
http://home.att.net/~jroal/calcs.html
several calculators, speedometer gears and such
http://www.4speedtoploaders.com/history.htm
all the info you ever wanted on fords toploader 4 speed
http://www.hammar.dyndns.org/~djhamma/partnumb.htm
decode part numbers
http://www.hammar.dyndns.org/~djhamma/datecode.htm
decode date codes
http://www.classic-mustang.net/jay/shelby/wheels.html
wheel sizing info
http://www.knfilters.com/univsearchin.htm
K&N filter conversions, just punch in the size you need and it get the K&N part number
http://home.earthlink.net/~pdisher/shelbys.HTML
bunch of good info on 68 shelbys
http://www.clubplug.net/cross.html
NKG spark plugs conversion/cross reference chart