Return Line for Fuel Injection

[jpoole]

Hey guys, looking in to adding fuel injection to the 403 in my H/O. Having a problem figuring out the fuel system. Gonna get a turbo regal tank setup with pump and sending unit etc. Only problem is the return line on the regal hanger is 1/4" and system needs a 3/8 to match fuel line.

What is the best way to setup this with a bigger return fuel line?
Is there any aftermarket sending unit that has 3/8 fuel 3/8 return and 5/16 vent?
Anyone modify sending units with bigger return lines?

Also any 83 Olds 307 guys, what side is your vent line on? Mine is on passenger side but the vendor I am looking at shows theirs on the Left.
Thanks.

 

[liquidh8]

Here is a link to a racetronix replacement sending unit/pump hanger. I know they all are different sizes, and the return is smaller than the feed.

http://www.racetronix.biz/itemdesc.asp?ic=FPS-G7&eq=&Tp=

Stock sizes measured off of stock GN's

3/8 feed
5/16 vent
1/4 return

Courtesy of the turbo buick boards.

 

[jpoole]

Thanks man. I found that and got the an fittings one with 8 an fuel (will down to 6) and 6an return. Will post up when installed.