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Old 03-18-2019, 06:26 AM
rang-a-stang's Avatar
rang-a-stang rang-a-stang is offline
Join Date: Oct 31, 2016
Location: Camarillo, CA
Posts: 3,229
Originally Posted by rockosocko
Good morning.

Is this motor going in with an auto trans?
And what gear ratio size tire?
Also, what type/size of carb

I'm kinda trying to decide on either the Comp 268 and a MTA-1 (AMC-360 TH400)
Intake gaskets need attention, so I'd be half way there anyway..

Motor is installed in front of an auto trans (stock TH400 with a mild shift kit and stock converter)
Stock 3.55's (i think... Might be 3.73, whatever came stock in a 79 Cherokee Chief with a 360).
Tires are 285/75-16 (about 32.5" tall)
Running a GM DIY Throttle body injection with computer controlled timing.

Runs pretty well, idle is pretty smooth. I have about 5 miles on the motor so far and am still tuning the EFI. My build thread (link in my signature has more details).
79 Cherokee Chief
(Cherokee Build Thread)
11 Nissan Pathfinder Silver Edition 4x4
09 Mazdaspeed3 Grand Touring
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Old 03-19-2019, 02:23 PM
rockosocko's Avatar
rockosocko rockosocko is offline
232 I6
Join Date: Jun 20, 2014
Location: NW, MS 'Yall
Posts: 213
Hhhmmm. Makes me want to give that TBI another shot.
Got a few parts off of a rental truck with a big block. But the Throttle body has some huge solenoids/sensors on it that doesn't look 'normal'

So, with that 268 she's idling smooth and no vacuum problems with the IAC when cold?

Thanks for chatting with me to.

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Old 03-19-2019, 08:05 PM
jeepman1's Avatar
jeepman1 jeepman1 is offline
258 I6
Join Date: Jul 22, 2015
Location: Cortez fl
Posts: 432
Mine works..

I had my heads surfaced, ran the 268 cam and just ordered original size pushrods, runs good so far w/ stock rockers.
: 98 9er
'83 Honcho j10
'12 Liberty Ltd.. wifes
'19 Chaparral H2o Dlx sport 21
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