hey guys just rebuilt my motor. Drove it about 1/4 mile and it just shut off and the tach went dead. Theres coolant leakin out. (i think from the head) I was wondering if maybe the heads werent torqued down enough because the heads are fire ringed but i am not using fire ringed head gaskets because there werent fire ringed head gaskets on there. So i have edelbrock performer heads which say to be torqued to 105ft lbs. I have arp head studs and dont no if the heads need be torqued down more. Any suggestions on what may have happened?