Mine is not lapped. My idle temps with coretemp (other programs screw up temp reporting) is 46,39,42,44 idle, and 57,49,52,54 on load. Not sure why your idle temps are so high. Heres what my case looks like:
my fans are like this:
Sorry i dont have any load temps while running 4 instances of prime95, but the temps listed above is what they were (I can link to a txt with my load temps while running it recoded by coretemp).