Holy exhaust batman!
...editing original post
http://www.gmhightechperformance.com...ure/index.html
"The Procharged engine is based on a C5-R block and heads and displaces 387 cubes. It churns out 1181 horsepower at 7000 rpm and 21 psi of boost."


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Still driven around 100 miles weekly with functional power everything. Including top.







