hey all! i have a 63 buick special with the 215 2 barrel. i pulled my intake to clean/inspect underneath. i put the intake back on with a new valley pan/oil gasket. i properly torqued to specs. the car ran fine. the next day i re-torqued and the bolt torque had dropped from 30 lb to 15 lb. i tightened them again to 30 and the next day they were once again at 15 lbs! i have done this 4 times. when i torque these bolts and spray carb cleaner around manifold it is sealed tight. the car then runs fine for a while then it starts to stumble. i then spray around manifold to find it is once again sucking air! what is this problem? do i need new bolts? should i use lock-tight? could i have other issues? thanks for any help. keith
