05-01-2010, 10:29 PM
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CC Member
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Join Date: Nov 2006
Location: Sammamish,
WA
Cobra Make, Engine: Superformance #2743, Roush 427SR
Posts: 130
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Not Ranked
Seems to me that to get to 550 HP, the 427 R with a single plane manifold is the choice. As noted at http://www.roushperformance.com/pdfs/427R.pdf. The 427 SR peaks at about 505 HP with a dual plane manifold. |
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