Gadget, that speed/pressure principle only matters if the cross sectional area is variable. Feeding the rails works in either series or parallel. Ive used both methods and never had a problem

 

Mine feeds the back of the driver side crosses in the front and bavk of passenger side to regulator

 

My connections worked out, got some parts at 11PM on a friday lol. The swap/fix was simple, went with Atomic's routing. It worked out that I added that inline fuel filter, had some extra line to reach the back of the rail. Also found a hidden restriction fitting the feed line from the tank hooked into, this couldn't have been helping my cause.

Looks 8an...



Negative..



Only thing that had me worried was this damn plate behind the manifold blocking me at the rear of the rail, luckily the thing was held on with one bolt but was a PITA to reach. Good weight reduction mod for 9s..



Little late to fire her off for all my neighbors. I'll do a few pulls tomorrow before going to the dyno to make corrections. Still got plugs to swap in tonight and a few more beers to take care of.

 

I believe your issue has been likely taken care of with the adjustments you have already made. However, I do know that one of the fastest trucks in the nation was having issues with idc, when he swapped from stock ls2 rails to a larger set of aftermarket his idc went down dramatically. I am not sure this is even a factor for you at this point, but something to keep in mind if your issue does end up persisting.

 

if your still having problems after this i got custom made fuel rails from hogans racing manifolds. think i had to ship him my stockers and he made me some 10 an logs capable of supporting 1500 hp.. the inside diameter of the logs is bigger than my thumb.. easy mod for $300.00

 

Well did it work!?

 

This is my brothers setup

 

I think it helped, only did one pull and did my first 3rd gear rolling into at 90mph burnout...said ok she's ready for the dyno.. Lol.. Here now, 2 cars in front of me..

Highest of the day is a whipple lightning, two stages of nitrous made 751/910tq.

 

Dam that's a lot if torque!
Anxiously waiting for your numbers. Good luck man

 

Get it son!

Those 5.4 3valves make a **** ton of torque with boost, and especially with nitrous. Only thing is they need at least 25psi to really move