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12-07-2010 10:13 PM
Thread: 390 H.P numbers?
by 2 Amigos- Replies
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Sweet. Since the 428 had 410 HP, and 450 with...
Sweet. Since the 428 had 410 HP, and 450 with better headers, im probably close to 350HP since I have custom headers and a true dual exhaust with Flowmaster mufflers. Thanks
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12-05-2010 12:38 PM
Thread: 390 H.P numbers?
by 2 Amigos- Replies
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Forgot to add, I added 390 GT heads as well
Forgot to add, I added 390 GT heads as well
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12-05-2010 12:35 PM
Thread: 390 H.P numbers?
by 2 Amigos- Replies
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- 3,322
390 H.P numbers?
Hey guys, I am just curious what my H.P gains are with this 390 I have built. Here are the specs.
68 Block
1969 428 CJ Intake
1969 428 CJ Water Pump
Mallorally Promaster Ignition Coil...
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A little bird