I also have trick flow track heat heads on my 94 302 motor. The motor has a 750 DP carb. I love the heads and wouldn't buy anything else but that's not fair to say since I haven't tried the others. I do know that when I did my research on the heads they where the best choice and I got the heads complete for $1,000 and that included shipping. I have a ton of room for valve clearence with a X303 cam. I did alot of searching on the 5.0 sites.
Check out the October issue of MM&FF. There is a comparison of 10 different heads. Flow numbers and specs are listed. In November they will publish the dyno results of all the heads. They are using a 331 as the test mule.
It's an excellent article and includes the TW heads.