I have a chance to get a deal on some Ford Racing Expo headers and was wondering if they are worth using...I have read alot of negative comments on them..but wanted to ask some V8 guys their opinion. I know Torque Monsters are the best but I cant shell out the $700..unless somebody has a good deal on a used pair! Also are the FR headers a direct replacement of the stock manifolds? I don't wanna redo my exhaust setup if I can avoid it. Lastly which Underdrive Pulleys would I use on a 97 Mountaineer Engine? the 1989-93 Mustang or the 95 F150 style? I have tried to compare and ended up returning a set I bought from Summit already and they had no clue what I needed. Thanks guys in advance.