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> Hi pressure to low pressure fuel pump conversion, changing to carbs
brandomc
post Dec 15 2009, 12:53 PM
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Hey everyone, i was wondering what will be required for me to switch to a low pressure fuel pump for carbs. Do i plug off the return line or do i still use it somehow? Anyone have any specific examples of what they did with all of the extra lines after removing their fuel injection system? Thanks
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SirAndy
post Dec 15 2009, 01:01 PM
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This will get you started:
http://www.914world.com/bbs2/index.php?showtopic=25954

I recommend using a rotary pump. They're MUCH quieter!
I used the CB Performance pump and liked it.

As for the return line, you can safely cap it off in the engine compartment. That way, if you ever go back to a setup where it's needed, you don't have to run new lines.
However, it is beneficial to run the return, even with carbs. It will require some extra work to set this up, so most people don't do it.

Make sure you run the thick FI spacers between the heads and the intake runners to prevent heat soak.

As for the wiring, the FI brain and and harness are pretty much one unit. Simply remove those. The rest of the wiring is still needed. Coil, Tach etc.


And lastly, if it's a stock engine, i'd rather fix the FI than run carbs ...
(IMG:style_emoticons/default/shades.gif) Andy
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