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Discussion Starter #1
Just wondering how much boost this combination should make(8" & 3.33")? With the factory pulley configuration (6.87" & 3.33") on the S-trim I was seeing about 8lbs of boost @ 6,200rpm.
Thanks in advance
Dale
 

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I was wondering the same thing, But am worried about clearance problems with the 8" crank pulley, and the water pump pulley
 

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14 psi on a 306 with 6037's and GT-40 intake. The pulley didn't touch the water pump pulley but the blower belt did slightly.
 

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LXPONY93 said:
Thanks BigDumbRedneck! Anyone else??????
:lol: :joy: :lol: :eek: :lol:
 

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Coilz347 the pulley fits fine. And BigDumbRedneck the belt clears the cobra WP pulley, the stock WP pulley has a reinforced face welded on and around it; when ya grind it off you also gain the clearance needed for the belt I have used both with the 8 incher.

cheers
 

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Discussion Starter #7
wesb How much boost did you see with the 8" crank pulley? Also what coolant fan set-up did you run? I currently have the stock clutch fan. I would like to go to an electric set-up(THAT WORKS) I cannot seem to get the mark8 fan to fit.

Thanks
 
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