Impala Tech - View Single Post - 70/71 Fuel Sending Unit
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post #6 of (permalink) Old 05-13-2019, 08:36 AM Thread Starter
FearlessAZ
 
 
Join Date: Nov 2018
Location: Phoenix, AZ
Posts: 15
 
Garage
Quote:
Originally Posted by 68WASAGOODYEAR View Post
You might want to double check that the "return line" looking thing on that sender isn't actually a vent or a tube for a vent fitting. Having a return line dump fuel that close to the pick - up seems suspect to me, which is why I say this. It will aerate the fuel being sent and will cause stall /hesitation.

Installing a proper return line in your tank isn't a big deal either. The holley EFI master kit comes with everything you need. You just want to make sure to get any and all metal shavings that result from drilling the hole. 9/16" hole, debur, get the shavings out, install the fittings, done.


I thought the same thing and that is what lead me to their website. They label it as an inlet so I can only imagine it is a return.

I bought the master kit but have yet to open it and go through it. But if it has all that, I will jsut stick with the 105A.

Really wish Holley made the in tank oem sending unit like they have on some of the other cars.

1970 Impala Custom coupe
400ci SBC
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