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Discussion Starter #1
Hello all, I'm a neebie.
I have a 95 LT1 in my 71 olds vista cruiser with a 200r4 trani.
I noticed today for the first time on medium to hard accl. the car stumbles or misses then backfires. Once that happens it clears a little, but is still noticable. On easy acceleraton I really cant feel or here it.
I do have a 58mm t-body and a larger mass air with a cone filter.
Any ideas.
thanks again, mike
 

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7,472 Posts
How old is the opti?

Plugs? Wires?

We need more information!

Have you done any troubleshooting yet?
 

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Discussion Starter #5
Thank you for the help. The opti spark, O2 sensors, and plug were new when the engine was put in. The opti spark is the later part#. I scanned for codes and none showed up.
I have had the car running for 2 years but now its a dailey driver. I live in LA
and traffic sucks. So I believe the miss is new. I have not driven for 1.5-2 hours straight since completion.
Thanks again for the help, mike
 
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