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Old 07-18-2006, 08:38 PM
Carnut427 Carnut427 is offline
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Join Date: Jun 2003
Cobra Make, Engine: ERA 427 w/496 Side Oiler, roller, dual quads
Posts: 417
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Edelbrock makes both low riser and medium riser heads:

Performer RPM FE for 390-428 Cobra Jet:
Chamber Size 72cc Bare (single) #60059 Complete (single) #60069

Performer RPM FE for 390 (NHRA-accepted for Stock and Super Stock):
Chamber Size: 72cc Bare (single): #60057

Performer RPM FE for 428 (NHRA-accepted for Stock and Super Stock):
Chamber Size: 72cc Bare (single): #60058

Performer RPM FE for 427 Low-Riser/Medium-Riser:
Chamber Size 76cc Bare (single) #60089 Complete (single) #60079
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