04-22-2003, 08:48 PM
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CC Member
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Join Date: Jun 2000
Location: Rock Hill,
SC
Cobra Make, Engine: Superformance, 396 CI
Posts: 1,268
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Not Ranked
Tim, it is my opinion that a 428 might be a bit rich with that much jetting, i know when the car magazines put engines on the dyno, they run them incredibly rich, but then they aren't concerned with things like "tip in" and drivability, just peak HP numbers.
If i had a nice 428, i think i would put in 72 fronts and rear, or perhaps a 74 rear just for "insurance".
No, never noted any black smoke from the sidepipes, i think you have to be way way too rich to note that.
all the best,
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Hal Copple
Stroked SPF
"Daily Driver"
IV Corps 71-72, Gulf War
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