Valve Spring Question

Tuned.... it made 360 hp with LT's, lid, Corsa, and a F1 cam (230/226 .591/.569 112LSA) with worn out 918's. Before the cam, it made around 345... I'd like to think I would gain more than 15 hp from a cam alone. Now I know it will be down on power from the mileage, but I didn't expect as much as I'm seeing here. So I'm thinking the worn out valve springs could be the rest of the problem. Any advice.... other than change the springs of course.
Do a compression test, replace the springs, and then let's see where you are.
Do a compression test, replace the springs, and then let's see where you are.


