340 Cam Kits which ones work with a stock block

Those mufflers were killing me! Picked up 3/10th’s going to pypes racepros. You can get a bunch out of the intake and exhaust manifolds. You can get enough that you will surpass your limit on idle quality. Determine what you want to do with the car specifically. I have run 12.02 115mph through that intake and exhaust manifolds. All the magic is in the head.