Which heads for stock motor?

[SlowStang2]

O.K. My car has lots plenty exhaust and plenty intake. My car is not running as fast as it should. In fact I have posted a subject earlier on this site entitled "Why is my car slow?" And basically after a dyno shop and, not to mention everyone on here, suggested that all my parts are not at their full potential becasue of my STOCK heads, I've decided I've got to get aftermarket aluminum heads.

Heres where I need you. I am not going to do the work myself due to insufficient expertise on installations, so I need to know what to buy. What is the best pair of heads of the best buy? I'm not looking to run 9s here. This will be the last thing before a possible charger, so I must not chose poorly. When I purchase the heads, must I get any extra parts to fit it? I read on here that Trick Flows are a good buy IF I get seperate parts. Please help. Keep in mind I still have my stock cam and don't desire to change it. Thanx every1.

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94' Stang GT Convertible Cobra upper&lower, Mac cold air w/K&N, Full exhaust, 3.55, etc. 14.4@100.