I too have over 20k in the motor.
Aluminum block, roller cam, eagle rods, forged ford crank, rocker supports, etc. etc... It added up in a big hurry.
Its a wild ride and I am still tuning it. I do have the idle down to 800 and it is very responsive and drivable. Major but pucker factor above 5k rpm.
Still running a bit rich, but with more time this summer I hope to narrow that down some. I am still going rich for the power side. Killer looks too.
Here are some pics.
http://www.mustangphotos.com/photopo...m/DCP01794.JPG
http://www.mustangphotos.com/photopo...m/DCP01837.JPG