Hey Draco
I think Jack said it best in his post #35. Engine 393a is an engine that the vast majority of cobra owners are going to love on the street. It is going to feel and accelerate very fast. It is going to pull from 1500 and up. It is going to be super quick for 0-60. It will terrify you, your "friends", and the "import tuners" sitting across from you at the stop light
The speedomotive 372 and engines B and C are not going to feel fast in the city. They will feel sluggish or flat. They are however, going to feel great at an autocross or roadcourse. Check out Dino's post again and you will see how tricky it is to manage a mountain of torque at low rpm in an autocross situation
http://www.clubcobra.com/forums/show...600#post117600
you will see some of these same comments reflected from Gordon Levy where he states "Many are destroking engines to get higher hp, lower torque, and higher reving engines. A lower torque engine is much easier to drive quickly on a road coarse than a high torque engine."
http://www.clubcobra.com/forums/show...097#post107097
I tend to side with Dino and Gordon on this issue since I won't be driving my cobra on the street that often. This is why I like the 372. Again, the majority of owners will prefer engine style A with a broad, flat, early high torque curve. Really this is splitting hairs...engine A would be very fast when used 3-4 times at cobra track events. Engine B might be only a second or two faster per lap. Engines are a trade off and so you should pick one that matches your personalilty and what you want out of your cobra.
Here is a link I stumbled across last night that is sort of related to this topic. Ever wonder what an engine designed for ovals would run in he quarter?
Here is a story of a nascar running down a drag strip and how it would do. These engines are designed for 725HP but in a very narrow band to run at 200mph.
http://www.circleracingonline.com/fe...cardrag_1.html
Andy