VSS differences for 746 to 730 swap

[olbap]

Hey all,
Lemme preface with IM SURE THIS HAS BEEN GONE OVER but the archives have
been down for some time it seems so forgive me.

I want to swap to a 730/727 on my 89 firebird running TBI. As I stated in
the last post that was ignored :) Ive figured out all the pins that need to
be changed.. etc etc.. pretty much know how to wire it up. Its a peice of
cake..  The one difference i see is VSS. I know there is a guy on the list
who did the 165 - 730 swap and lists something about a custom prom neccesary
for vss function in his list of pinout changes. 
Looking at the diagram i have the VSS seems to have a power wire seperate
from the ecm and a ground shared with the power steering switch and gear
selector switch on the 746 ecm (im guessing). The 727/730 is just an in and
out deal from the vss. 
I suppose if it came down to it i could swap the VSS out but id rather not
do that cause im a poor student
I know someone out there knows this

Thanks
Pablo

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