Help: Builing a Street 408

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#1 (permalink)

11-30-2008, 09:08 PM

olddog

CC Member

Join Date: May 2006

Location: St. Louisville, Oh

Cobra Make, Engine: A&C 67 427 cobra SB

Posts: 2,445

Not Ranked

AFR 185 are too small. AFR 205 would be my pick. If not AFR 205, my second pick is the Edelbrock Victor Jr.

Comp offers a XFI series of cams designed for strokers. I have a dyo pull listed in a book with XFI 0.579 lift 236/248 duration and 114 lobe seperation in a 408, wth AFR 205 heads, and super victor intake. It did 560 hp @6200rpm peaked 532 ft-lb @4900rpm. From 3000 to 6500 rpm torque stayed above 425 ft-lb.

Also your intake seems too restrictive for a 408.

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