Author Topic: 17058266 1978 Trans Am 400 W-72 Automatic  (Read 2149 times)

Offline steve s.

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17058266 1978 Trans Am 400 W-72 Automatic
« on: November 05, 2017, 12:45:19 PM »
Looking to find out where my initial air/fuel mixture screws should be set at for this carb.  Thanks!

Steve

Offline Cliff Ruggles

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Re: 17058266 1978 Trans Am 400 W-72 Automatic
« Reply #1 on: November 06, 2017, 02:26:24 AM »
The idle mixture screws are set for best idle quality at the leanest settings.  This should happen around 2.5-3.5 turns out from seated with that carb number on a correctly tuned and good running stock engine.....Cliff

Offline steve s.

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Re: 17058266 1978 Trans Am 400 W-72 Automatic
« Reply #2 on: November 06, 2017, 02:21:10 PM »
Thanks Cliff.  I will be contacting you in the very near future for a rebuild.

Steve

Offline Cliff Ruggles

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Re: 17058266 1978 Trans Am 400 W-72 Automatic
« Reply #3 on: November 07, 2017, 04:02:30 AM »
Sounds great...