I'm from Rekless, figured I'd join up here just for a chance to read up on some T-Bird info.. see what other people are doing and what not. I have a 94 Thunderbird Lx.. one of those special guys who did the fancy 351W swap. And I see my biggest mistake was keeping the ol' cast iron heads according to everyone here haha. I did a decent port and polish on them, so they aren't terrible. But I do have one question.. how helpful would it be if i switched from stock rocker arms to a set of aluminum 1.6 or even 1.7 ratio arms.