help want more top end

Your valve train is calling it quits around 4500.
If you want more... you're going to have to put something into it.

saleen9973 said:

Like what a cam? I want to keep the heads for now. Am i just gonna have to live with it for now until i can afford heads and a new intake?

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No.
I'm suggesting you put some technology in your valvetrain.
1. multi angle valve job with blend into the bowl
2. much better springs
3. titanium retainers... not required, but taking weight out certainly helps
4. stud rockers... shaft is even better, but not suggested since you plan on upgrading to better heads.

I suggest you find a reputable cylinder head shop and have the machinist go through your heads and fix them so they perform to your requirements.
The above items would run you around 600.00 if you shop wisely and not cheaply.
You'll be surprised how much you left on the table once you run a nicely setup set of E7s.

I suggest you try 1.7 ratio rockers, they "should" move your power band to the right and has been known to increase power sightly.
I'm inclined to say "degreeing" your camshaft is much better than just blindly moving it retarded or advanced and hoping for a positive result.

Good luck.

saleen9973 said:

thanks for the replys guys i guess i will try 1.7 roller rockers and see how see feels. The heads were just done but i kept the stock valves. i guess shifting at 5000 is not that bad for a street car. Or until i get enough money for new heads and intake.

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My bad... saleen.
In order to run the 1.7 ratio setup, you'll need to upgrade your valvesprings!
I have to tell you I mentioned the 1.7 ratio rockers "if" you've tried all the above and still weren't satisfied.
Consider yourself informed you possibly will toast your valvetrain if you just install the rockers and not get better springs, check for bind, pushrod length, and install height.

I personally would not put that amount of money in a set of stock iron E7 cylinder heads.

Save that money for a set of aluminum heads that will save you 40 lbs off the nose and give you more power.