My buddy and I just put in Maxspool 2.5+'s, Maxspool double valve springs, and Maxspool Pushrods.
Up untill today I had a stock charger. What I noticed on the stock charger was 4psi more boost. Which show's you that I'm moving more air. Also roughly 100*F egt drop on short 4th and 5th gear sprints. The biggest gain I noticed was, I had too much fuel for my stock charger in 6th gear. I'd nail it and it'd just get hot, no boost. I had to ease it up to about 20psi then get into it. With the cam, I could just nail it in 6th gear and boost would come on hard and instantly. Not to mention how much more driveable the truck was. Instant boost all the time. Didn't even matter what tune I was running. I towed a 32ft gooseneck race trailer this weekend to Goliad. ON STOCK TUNING! With no complaints at all. I tried my pressure box with it, I just didn't need it for the boost I was making. 30-38psi on texas hills with 4:10's, a NV5600, and the cruise set between 65 and 70. The springs and the cam really made my entire rpm range useable. And I picked up 1.3mpg hand calculated.
Now, as of today, my buddy and I both have Silver Bullets and we both have TNT-Race. I have a Dr. Performance varialble gain pressure module. He has II 150's and an II Dragon fire pump. And I can make my Silver Bullet smack at 15psi on stock injectors and pump. His Silver Bullet lights at 10psi. That speaks volumes about what a cam can do for you. Most people say the S.B. is laggy and you have to have huge injectors. All you need is good tuning and a cam. I can't believe how streetable my S.B is. I've heard people say they tow with them. Now I actually believe 'em.
A cam isn't all about HP numbers. Dyno comparison numbers would be nice to have for every cam installed but, this isn't a perfect world.
So, like Big Swole said, now spooling, egts, rpm range are all working for you instead of against you. I've read about people who don't have cam's talking bad about them. How much they cost, labor to install, etc. That's just because they don't know. A properly matched cam will make any engine perform better throughout the entire rpm range. And if you can wrench on your own truck, it's not that pricey to install one.
I'm so sold on cam's now that I'm already speaking with Greg Hogue at
www.motorsportssupply.com about getting one of his new
Cast billets with a bigger grind and slapping this 2.5+ in my 03 tow/daily driver. He's a forum sponsor and heck of nice guy to b.s. with. You can't go wrong with his products.
Cam's are one of those things you'll never miss untill you've tried one and then you'll wonder how you ever lived without one.
I have pic's of the cam install if anyone want's me to email them.