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Old 05-11-2010, 02:57 PM   #1
7ft stew
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after burnout it wont run

72 pontiac 350 with 2bbl q-jet in a 76 2wd blazer. After I did a burnout it was running very bad. It would idle fine but in "drive" it just boggs down when I give it throttle. I replaced cap,rotor and plugs. I was thinking accelortor pump would be next. The distributor is adjusted all the way towards the firewall,which is where it was before. After new parts,messing with timing and the air\fuel screws on carb it still runs bad. Any help is greatly appreciated
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Old 05-11-2010, 03:17 PM   #2
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Re: after burnout it wont run

I hope you didn't stretch the timing chain. How many miles are on that motor?
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Old 05-11-2010, 03:24 PM   #3
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Re: after burnout it wont run

I have no clue how many miles are on the old motor. The PO said it was a 400 small block. After doing some research I realized that pontiac didn't have small/big blocks. I found the I'd numbers and figured what it was
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Old 05-11-2010, 07:50 PM   #4
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Re: after burnout it wont run

Pontiac? ....you have pics of this?
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Old 05-11-2010, 10:27 PM   #5
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Re: after burnout it wont run

Name:  035.jpg
Views: 164
Size:  58.9 KBthe numbers on the motor are: head-DN 102271 front of motor-575699 back of motor 481990...im not sure what the pic will do to help but here ya go
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Old 05-12-2010, 12:15 PM   #6
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Re: after burnout it wont run

check your tranny fluid, while in drive in could be putting a big load on your engine
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Old 05-12-2010, 12:52 PM   #7
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Re: after burnout it wont run

might have even messed up your differential since its bogging down in drive
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