Carb'd 383 and Emissions
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
sniff test where? and the 454 in my truck has passed, so any motor can pass if you can tune it, besides Cali of course
Thread Starter
Junior Member
Joined: Nov 2006
Posts: 7
Likes: 0
Car: '92 RS 25th Anni
Engine: 305TBI
Transmission: 700R4
texas may be the best state in the union but unfortunately in my county we have the dreaded sniff test and this 383 my uncle's tradin me was dyno'd at 504rwhp so that was kinda scaring me as too the whole emissions thing
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
pass emissions with the 305 then pop in the 383 and get a show car waiver, if your state has that like illinois
Supreme Member
Joined: Apr 2004
Posts: 1,077
Likes: 0
From: Denver, CO
Car: cleanest '86 sport coupe around!!
Engine: 355ci twin 66mm turbos on e85
Transmission: built rmvb th400 w/ t-brake
Axle/Gears: 3.23
if that 383 really made 504rwhp, that means it probably has a not so smog friendly cam (lots of overlap, tight lsa etc.) before you go, get the motor real warm and lean it out then cross your fingers.
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