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Old 08-05-2011, 11:14 PM   #1
69GMC910
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Join Date: May 2000
Location: Devon AB, Canada
Posts: 849
sbc to bbc conversion...

Does having the small hump floor pan matter? Did big blocks have the high hump, or was it just 4x4's and floor shift trucks? What else is necessary when going from factory sb to bb?
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82 GMC High Sierra
VortecPro 496
12 Bolt, 3.42's

AFR 265
Holley 850
Performer RPM Air Gap
Hooker 2455's
TCI Turbo 400 Super Street Fighter
TRRC 12 Bolt
Eaton Posi/3.42
Mark Williams Axles
Cal-Tracs
Hoosier 30x10.5 Radial Slick
Ryan Brown Performance 850 Holley
Full weight long box pickup
Current best- 11.28@119mph
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