what difference and gains can i expect from a set of comp cams?

 

Comp makes many cams. They're all intended for a different purpose. XE262AH is a great street cam that adds a little hp and tq in the middle of the RPM range.

Now run off and do the research like the rest of us. www.howstuffworks.com and the search feature on this forum are your friends.

 

On a full bolt on GT cams will get you anywhere from 25rwhp - 40rwhp.
The top three choices would probably be:
1) custom grinds from Modular Powerhouse
2) Cushman Stage 2's (VT)
3) HiTech Stage 2's

I would personally go with the HiTech's. They are new to the 2v cam scene, but all thier cars so far have put out over 300rwhp (full bolt ons + cams). If you're looking to be supecharged in the future, then you should get supercharger cams now so you don't have to change them once the supercharger comes. With supercharger cams on a n/a car you'll gain less than you would with n/a cams, but once you add a supercharger you can expect 60rwhp from the cams.

 

For anyone running a Mustang with a 4.6 with bolt-ons... do yourself a favor and pick up this book. It has a full comprehensive breakdown of what upgrades are really worth the money. This guy gives before and after dyno graps so you can see exactly where these products make power. The section on cams really opened my eyes on what is the best cam to select.

 

cool thanks for the book link, i really need this dude, thanks