Holley TBI fuel pump question

[farmallgray]

I have one of the older Holley analog TBI systems that I want to put on my 79 K-20 eventually. I got it used years ago(for free), but the inline fuel pump was missing. This was a complete stand alone system made to retrofit carbureted vehicles. The TBI unit and the rest of the system is a very close copy of the factory GM TBI setup. In fact, the TBI unit is sold as a bolt on replacement (with more CFM) for the factory unit.

A buddy of mine scrapped an 87 V-30 and I was looking at it yesterday. It has in tank fuel pump that looks to be  in good shape. I was wondering if the stock pump/sender from the 87 would work OK with the holley setup. This isn't going to be a real hi output engine. It will be a mild 406 built for torque.


I know Carter makes a retrofit inline pump for TBI swaps that run around $150. I was planning on going that route, till I saw the pumps in that 87. I figured I may get better life and have better future availability with and OEM pump rather than a specialty aftermarket unit.

[VileZambonie]

The factory in tank pump will be fine. I'm not sure what your holley has for a fuel pressure regulator though being that you said it was pretty old so you might want to make sure it is still in good shape and operating at the correct pressures when you get it all together and installed.

[farmallgray]

It has an adjustable regulator built in to the throttle body. I have a video put out by holley on tuning and installing it.
And I also have a book on setting up and tuning the different holley injection systems.

[farmallgray]

Will the lack of baffles in the tank cause a problem? I noticed that the 87 tank has a plastic insert in the bottom that looks like a baffle system.

[Captkaos]

for normal driving, shouldnt be a problem, just don't run it extremely low.