[mikde]

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

 

[gettinthere]

When it comes to an LT1 running bad, step one is check the Opti-Spark.

 

[Chris 96 WS6]

How old is the opti?

Plugs? Wires?

We need more information!

Have you done any troubleshooting yet?

 

[contraststriker]

Man everybody jumps on the opti bandwagon sooo fast. Check for codes, I bet your O2's are acting up...or rather, not acting at all.

 

[mikde]

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