Fw: Miniram Tip in Problem

[Kevin R]

> Hello,
>
>     I sent this out yesterday but didn't see any responses that might have
> been made because I was not subscribed properly.  If you responded, please
> forward the to me at jwn at sgi.net
> Yesterdays post
> Hi,
>     I have an 89 Corvette with the 7165 ECM (MAF).  The motor is a mildly
> built 350 with a Minram intake.  I had a Super Ram and when I switched to
a
> Miniram, I developed a slight tip in problem.  Sometimes I'll get a
backfire
> through the intake.  No vacuum leaks (16-17 in hg) , timing is set at 8
> degrees BTDC fuel pressure is set at 50 psi vacuum line off.  I'm running
> stock 22 pound multecs.  Block learn at idle 126-128.  If I run pressure
> higher than this the injectors
> start to shut down and I actually get less fuel.  This was with the old
fuel
> pump and the new one.  The 7165 I guess has no pump shot table like the
730.
> Do I modify the MAF tables to add more fuel at those low airflow levels?
> Some others have claimed the same problem and more pump shot fuel was
their
> solution.  Plug wires not mixed up.  Will pulling a few degrees of timing
> help out?   Its just when you
> goose the gas there is a slight stumble.  If the idle is faster say 1000,
> then it does not do it.
>
> Thanks!
> Jason
>


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