I am about to get my built long block from SGP pretty soon and would like some advice on how to break it in. What are your thoughts on this method?
http://www.mototuneusa.com/break_in_secrets.htm

 

There are a thousand different "secret" break-in methods out there. It's all personal preference.

 

Mine was done on the dyno like it reads on the website, no problems as of yet.

 

I do agree with one aspect of the break in method. DON'T BABY YOUR CAR! Make sure you vary your RPMs and dont cruise too long at one RPM. Also, don't be afraid to flog on the car. I also feel that mineral oil should be used for the first few changes as it allows additional friction for the motor to properly break-in. After that a good synthetic will perserve this perfectly broken in motor.

 

I've done that method on all my new and rebuild engines and its working

 

Flog ,well kinda, rapid accel and decel to work the rings, but I wouldn't advise high RPM runs till after the first couple 100 miles and an oil change .
I would load it agressively yes, but keep RPM <5k.

 

elaborate on the use of mineral oil...

 

Regular oil...not synthetic.