Thanks for the help guys.......I was on RB's site and I was looking at this:
http://www.rbproducts.com/rbww/faqrb...htglowplug.htm
Looks like the plugs I was using is supposed to be good to 86 degrees....and the last time my car did run fine was at night....Could these plugs really be that sensitive to outside temperature?
I'll try the #6s as soon as I get a hold of some!
Thanks guys!