I have no first hand experience with Steeda but i've heard that they are awesome. One thing to consider with Steeda is buying the timing adjuster and the pulleys at the same time and saving time and money on install (since they kind of go hand in hand). It's a good idea to cluster mods from the same company for fitment reasons so if you were planning on going with the timing adjuster I would go with Steeda. Otherwise the FMS (Ford Motorsport), March, or ASP would be other good choices.
Brett
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66 Tahoe Turquoise Coupe
Laser Red 96GT Ragtop
30 Years & 30 inches apart in the driveway!