American Muscle by far is the best for price and customer support. I've dealt with Stang Mods and MGW who were both great but only because AM didn't have the product I was looking for. On the CDN side, here in Ontario we have an SVT Ford Dealer that specializes in FRPP parts, their prices are are comparable to shipping in from the US if your looking for Ford Racing parts (personally I find many of their parts over priced). Moral of the story, you cant go wrong with AM. Best of luck.
AirRaid CAI, FRPP lca's, Sequential tails, BBK headers & catted x-pipe, Hot Rod Cams, FRPP axle-backs, MGW shifter, 20" bullets, Bama Tune, Eibach Pro Susp Pkg.