Well, i'm new here and actually don't have a Cobra, but with a friend have plans on modifying a '96 351W engine into a 427 stroker. Since where i live are just a few people who knows how to build powerful engines, this is the best source for 351W's mods that i could find. The idea for this engine is that it has a LOT of torque (it's gonna be used in a 4x4). What i want is a personal opinion on what parts are needed to build one torque monster engine, intake, exhaust, cam, etc, etc. Actually the engine has Edelbrock heads and intake manifold (with a carburetor...no idea why this guy get rid of the original injection...) If you can give me advice, i'll thank you a lot.