Lol, All that stuff is a MYTH. Matter of fact most everything I have heard or read online is a MYTH regarding anything to do with what can and can't be done with these cars.
I use to run it down the FWY before the rear end swap with 3.91 gears @ 3650 RPM for 30-40 min straight. Not even letting off the throttle. It is in Happy zone. 175* Temps, 60 PSI Oil Pressure. Outside temps 95*+ , Wide Band 13.8-14.1
It is a Stroker too with a Solid Roller...... Ladder Bar & Spool. More than 700 HP on the Juice that Rev's over 7K RPM with a stock block & a 904..... None of this is possible per everything I have read and has been preached.....It should have blew up a long time ago.