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Old 01-19-2021, 08:43 AM   #7
Grumpy old man
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Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
Re: Screw for the exhaust manifold

Are you using header bolts ?

https://shop.advanceautoparts.com/p/...0&gclsrc=aw.ds
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1967 Factory short bed - Old school
'71 - 350 / 4bolt / 487 heads / Edelbrock C3BX
Muncie M-22 4 speed / Hurst Comp plus
Factory 12 bolt posi 3.73 / 255-70-15
Smoothed firewall / Factory cowl induction
Power disc brakes / power steering / 3.5-5" drop
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