I see that you have the custom 2 pump drop in pump from Racetronix. Do they offer a Walbro and do you have there phone number? Also, what do you mean by it cost $40 to have the in line pump wired in?

 

Can you get just an inline fuel pump or do you have to get the in tank unit which is like 400 bucks or so. The inline pumps are much cheaper are these only for old carb vehicles .

 

Please read this thread:

https://ls1tech.com/forums/showthread.php?t=244435

 

Depends on the P/N of your fuel module.
This is the information we send pretty much everybody who asks this question.

Call your local GM dealer with your VIN # and get the GM eight digit or preferably the Delco MU fuel pump module P/N. With this we CAN determine if your FPU is compatible with the Racetronix venturi pump systems.

Delco MU159 (GM 25314353) compatible
Delco MU152 (GM 25314341) compatible
Delco MU1065 or MU203 (GM 25320538 / Delphi FG0127) compatible

Delco MU1089 (GM 25176865 or 25345026) not compatible
Delco MU1062 (GM 25344814 / Delphi FG0070) not compatible
Delco MU170 (GM 25169302 / Delphi FG0104) not compatible

Once this is done contact Racetronix with your MU # as each requires slightly different parts due to size variations.

The HW harness would be a different length as well.
These systems are not officially released yet as we are working on an application chart and manuals.