larger return line, fuel system band aid
 

for those of you wondering how to band-aid your fuel system for slightly better than stock power levels well here we go
- disclaimer I am in no way responsible for operator error on your part if you screw something up -




I apologize in advance if there is a "how to" in existence for this







folks have been over running the stock regulator and return line for year after a twin 255 LPH pump install







what you'll need (thanks for the part numbers go to 65fastback2+2 and Modular]bigborestroker, special thanks to kspeed for providing the regulator and rails

crewsy for being a role model for me, tbonemcniel for being a good friend also slowpoke31, BossHoss and Capt.EKB for enjoying these threads)







what you'll need:

1. Russell Performance Fuel Rail Connector - 640873
2. Russell Performance Fuel Hat Connector - 644113
3. 10.5'-11' of -6 AN fuel line of your choice (I opted for the PTFE) note: this is length for a regular cab short bed
4. two hose ends for the hose you choose to use
5. '97-'98 fuel rails
6. adjustable fuel pressure regulator (I've used both BBK and Aeromotive without issue the professional products ones I've tried have not lasted nor cleared larger blowers) - the one used here is the aeromotive part 13102
7. basic hand tools and fuel fitting tools
8. common sense

"pile-o-parts" prior to starting

https://cimg2.ibsrv.net/gimg/www.f15...3f2eb6a90b.jpg

https://cimg9.ibsrv.net/gimg/www.f15...dd5d3cc695.jpg

pile o parts two
https://cimg1.ibsrv.net/gimg/www.f15...288e46bcc7.jpg
buying parts



































the hose end fittings mid assembly


https://cimg7.ibsrv.net/gimg/www.f15...a9dadc8b6b.jpg
PTFE end install








going to start with the fuel hat connection ( did the install under the truck and pictures are kinda hard to take in limited space so these will explain a lot as to how the fitting works)


https://cimg7.ibsrv.net/gimg/www.f15...7df104b659.jpg
fuel hat fitting one


https://cimg7.ibsrv.net/gimg/www.f15...bb9dc6c960.jpg




















regulator differences










this is the end ready to go once run up to the engine bay and plugs directly in as the stocker


https://cimg9.ibsrv.net/gimg/www.f15...4f05d31bc0.jpg



https://cimg6.ibsrv.net/gimg/www.f15...fdd5e88597.jpg














I removed the factory return line without cutting or anything and ran the new return line in the same route and clamping points, just a hint, separate at the supplied spot for ease of removal





























also since :stoffer: just a difference in the factory installed regulator and the aftermarket
https://cimg2.ibsrv.net/gimg/www.f15...96031b6f62.jpg











and yes, clears a KB 2.6 or whipple 2.6 with ease



https://cimg4.ibsrv.net/gimg/www.f15...cf51015f37.jpg

here's another option for ends and lines

Excellent write up. Thank you!