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Re: How to restore stock exhaust manifolds? ???
Vinegar does not eat grease or remove rust scale . It's cast iron start scrubbing and you won't hurt them and part of the cleaning process is the inside and mounting surface start scraping . This is one item that requires elbow grease ! Or take them to a machine shop and have them do the work for you and have them hot tanked .
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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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