Roush engine ?

[cobrarob]

Hi guys

I know the roush engines are widely discussed on this forum and I think the information I am looking for will be here

I am trying to decide which Roush engine to install in a new Superformance Mark 111

I beleive I would like to go with the 402"S"R"TW" as I have heard that the 402 is a little more streetable than the 427.

I have also heard that the "S" stands for a split plane manifold , I could be wrong on this , biut either way I would like to know the advantages and disadvantages to this engine modification

I have also heard that the "TW" stands for a twisted wedge cam and I would like to know the advantages and disadvantages of this engine modification

I am looking for the most relaiable engine combnation with a carb , I am not using the car for anything other than cruising and I really dont want to have to experience run-on

Nothing worse than pulling up to your favourite watering hole and have a crowd gather and when you shut the engine off the car runs-on , pretty embarassing by any standard

I have heard that carburator technology has come along way on modern engines and in particular on roush engines , in my experience I found engines with high horsepower and carbs had to have a constant level of attention to keep them running and avoid stalling at low idles , any comments ??