Performer intake ? Not the Performer RPM ?
The Torker II would be a better choice than either one of or those, a single plane runs fine on the street on a 455+ cube engine.
There are plenty of other single plane intakes as well that are more suited to 600 horsepower engines. A dual plane intake would not be on my list.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
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