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Blue Thunder 4.3 heads
We have done several set of these and have some nice CNC programs on them. These are over kill on a street engine unless it was real large like about 440C.I. We have used these on several blower and turbo engines with good success. They also have a head that is a 3.6 version that flows about 390 to 400 that is a little better for wild street applications. Thanks, Keith
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Keith C
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