Is it fuel or my heads

Here is my problem my car stock with 2.73's ran a best 14.4 @ 97.17mph with a 2.242 60ft on street tires. Now with the mods listed in my sig it ran a best of 14.2 @ 99.93 and a 2.153 60ft. I tried shifting different rpm ranges, fuel pressure changes, timing changes and the results were no better. It feels faster with the mods but it is not producing it at the track. I don't feel no drop off in power neither. So mainly my question is should I change to bigger injectors or get better heads, right now I don't have the funds for the heads I want but if there is some other thing that would help me out it would be greatly appreciated. Thanks

I do have a set of 30lb'ers on hand but I would have to get my maf calibrated

Stang8URMPRT - your saying it would be to much fuel with 30's but would it run that rich with my setup where it would be a big waste of fuel especially how gas prices are? On another note my buddy just bought a hand held a/f ratio meter but he has not used it yet to see how it works I guess I could be his tester

Idwitheld-1` - I was explaining how it was when I had 2.73's now I have 3.55's and the powertrax locker