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Old 07-21-2013, 04:12 PM   #11
69GMC910
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Join Date: May 2000
Location: Devon AB, Canada
Posts: 849
Re: 496 to be DYNO'D!

Mark Jones, the builder at VortecPro, insists that the velocity of the air through the runners is the key. I told him what my plans for the truck were(85% street/15% track) , he told me what he would build for me. I'll easily run power brakes, and still be capable of decent track time... Which I can not wait to do!!!
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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
Mark Williams Axles
Cal-Tracs
Hoosier 30x10.5 Radial Slick
Full weight long box pickup
Current best- 11.33@117mph
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