Best Heads For Stock Short Block

[StreetStang37]

What heads should I get for a stock short block? For the Twisted Wedge heads it says you need to use flat top pistons. I forget what mustangs have stock, are they dome? Im not getting them yet, I want to buy the heads, intake and cam all at once so it would be cheaper to install. I know edelbrock has a good set up in the Perfomer, just wondering if there is better for the stock short block? Also, how much valve lift am I able to get msx. Maybe some other stuff that may be a better deal (no NOS posts please) would be a welcomed too. I also still want to be able to use the headers I have now.

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1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, Super Competition Hooker Headers, 2 1/2 in. mandrel bent cat back, High Flow H-Pipe, Pro 5.0 Shifter, 16* Timing Advance