blue smoke on acceleration , dramatic increase
So, studs or bolts? What gasket? Did you retorque? I had issues with the felpro gasket pushing into the valley. After changing how I did it, no more issues. I torque them to the spec and leave them overnight. Come back and in sequence back them off a 1/4 turn and retorque them. They usually will turn more. Studs are worth it just for not having the small hex of the arp bolts. I now run studs and cometics. LA’s could definitely benefit from a fifth head bolt.