383 stroker

Old 04-23-2010, 12:34 PM
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RobertO58
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Default 383 stroker

I have a 383 stroker in a 68 camaro that when accelerate from 1000-2500 rpms with or without a load on it will back fire throught the carb does not make any difference what kind of carb does the same with a holley or edlebrock 26 total timing
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Old 04-23-2010, 06:00 PM
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TheYellaBrick
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Is this street-street/strip - or strip only car ?

At what point of acceleration does this happen ?

If it's just as you stab it, it could be not enough accel pump volume, even on 2 different carbs, it could be weak or not enough. Also could be your advance is not working or is gummed up within the distributor.
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Old 04-23-2010, 07:56 PM
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zipper06
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26* is not enough timming even for a stock engine, should be 32*/36* total timing.

JMO

Zip.
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Old 04-23-2010, 11:25 PM
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cepx111
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Originally Posted by zipper06
26* is not enough timming even for a stock engine, should be 32*/36* total timing.

JMO

Zip.
X2
I'm pretty sure my lawn mower has more timing than that!

Double check your firing order too.
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Old 04-27-2010, 08:22 PM
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cncmotorsports
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Needs more timing
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Old 04-28-2010, 10:56 AM
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et7333
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Originally Posted by zipper06
26* is not enough timming even for a stock engine, should be 32*/36* total timing.

JMO

Zip.
x4
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Old 05-06-2010, 04:59 AM
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RobertO58
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when I put more 32-36 in it it diesels when i try shut it off and i still get a back fire through carb, also when i remove vacum advance hose the motor dies,
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Old 05-06-2010, 05:36 AM
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bowhay
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check for vacume leaks
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Old 05-06-2010, 11:29 AM
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Scooterz
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Are you sure that you have the correct vacuum source connected to the vac/adv? It may be that you have too much constant/high vacuum to the vac/adv & it is advancing too soon... while not enough timing on motor which maybe is why it dies when you disconnect the vac/adv hose... not sure, just a guess.
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Old 05-06-2010, 12:41 PM
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kwkracing
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Sounds like your timing marks are not accurate
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