you are probably close to the right ball park i paid 4200 for my 86 its a 305 not 350 had about the same milage (74,4xx) original/stock engine original interior
it had/has faded paint on the mirrors and spoiler with minor road chips on the nose
and it needed an egr and air pump so it wasnt perfect either
good luck!
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1986 Camaro Iroc z28 305 TPI 700R4
-hooker-edelbrock 1 5/8" shorty headers-1.6 roller rockers-52mm TB-3.23 10 bolt- ...191rwhp/280rwtq...14.97@90.5 2.04 60'
2005 GMC Sierra 2500 LLY Duramax -exhaust-gauges-leveled-wheels-tune-egr delete....339rwhp/637rwtq
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