Edelbrock TBI conversion to PI

[David Sagers]

Last night I was looking thru the new Jeg’s catalog and saw the Edelbrock 
kit for converting a GM TBI to a port injection system, includes manifold, 
injectors, fuel pump...

The description says that it uses the TBI computer.  Now Edelbrock makes 
some fine intake manifolds, but the total cost on the kit is some $1100.

Since I already own most of the parts for a TPI intake, I am  wondering how 
to make the TBI computer for my ‘92 SBC Suburban fire all eight injectors if 
I install the TPI.  Is it as simple as a harness that plugs into the 
existing TBI harness or is there more to it?

Seems that a computer designed to drive two TBI injectors would lack 
something necessary to drive eight TPI injectors, maybe that’s why the kit 
is $1,000.

What else to I need to change to make the TPI conversion?  Would I be better 
off buying the Painless Wiring harness and using a TPI computer instead of 
the TBI computer?


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