Oxygen sensor and high speed stumble

[Shannen Durphey]

BossOz at aol.com wrote:
> 
> In a message dated 98-10-30 16:43:46 EST, you write:
> 
> << So my question still remains, how marginal are the stock fuel pumps and if
>  I boost the system pressure will it starve at higher RPM because the pump
>  can't meet the demanded flow rate at the higher pressure. >>
>  Run a fuel volume test and find out.  I have seen many a pumps that would
> pass a pressure test but not even come close to providing enough volume.

True, if you only check pressure at idle or in the shop.  If you can
duplicate the problem while the gauge is attached, you can see
pressure drop.
Shannen