Ok. I should have said stock valve cover with stealth heads. These super performance are just too hard to squeeze. There recommendations of 25 ft lbs of torques on alum heads for a 1/4” bolt is just too much. There thermostat gaskets is made wrong. The bolt holes are too elongated. Won’t be using them again either.

Last edited by fastmark; 02/09/21 08:20 AM.