same I am going to try and do this heat cycle method. Any feedback would be appreciated.

Wrap head in aluminum foil and preheat o 180-200
Start the car and let it sit a minute or so and get temps up and keep an idle.
Put the car down and run it for 3 minutes varying throttle and keeping temps at 200
Bring it in and let it cool at BDC(Repeat step 5 times)
Take the foil off the head and lean the top end slightly and restart
Run the car for 4 minute cycles varrying throttle and keeping temps at 200 and letting the engine cool at BDC in between runs(repeat 4 times)

Then is should be good!!!