Installation Instructions for Fuel Rails

A. Remove factory chrome feed, return lines, and fuel rails. Remove injectors from original rails. Clean and cover to keep dirt and dust out. (Caution: Contents may be under pressure)

B. Take CarTech Fuel Rails and install desired fittings. Use loctite pst, liquid teflon or
teflon tape. When using teflon tape do not run tape over the hole in the end, as pieces of
teflon can get into an injector and clog it. (See diagrams 1 & 4 on following pages for
proper fitting use. We recommend using diagram 1 with a CarTech fuel pressure
regulator) Do NOT over tighten fittings into fuel rails, it can cause the rails to leak if done
improperly.

Return Style Regulator     Feed Side Regulator

C. Take injectors and install them into the CarTech rails by using silicon spray or WD-40.
Be careful not to pinch the injector o-rings and take your time. Once in, rotate clips to the
outside of the rails.

D. Set rails on the intake. The rail that is capped off goes to the front on the driver's side.
Use the spacers provided between the intake and the brackets if needed. (Stock distributor
will need spacers on driver's side only and MSD requires no spacers)

E. Run -8 Braided Line in the back as a crossover. Then run the fuel inlet on passenger
side and -6 return out of the driver's side to the fuel regulator.

F. When cutting braided line - mark it from the middle of the fitting, then wrap duct tape
(or suitable tape) over the hose, center the mark on the hose to the center of the tape. Cut
it with a saw, wheel, band saw or hack saw. De-burr and install into receiver part of the
fitting (red part) and turn counter clock wise until hose is positioned just below the
threads in the receiver fitting. Spray silicone or WD-40 into this hose and fitting. Then
install the other part of the fitting. Be careful not to strip the threads. Tighten until both
parts of the fitting are flush. Some adjustments may be required to ensure all fittings line
up w/ no bind in the hose.

G. When running your fuel line, do not run any lines through the drive shaft tunnel, not do
you want to mount the fuel regulator to the firewall. Fuel lines must be on the outside of
the frame rails and/or frame connectors. ANY deviation from these specific instructions
could cause your vehicle to fail technical inspection or be disquilified from any N.H.R.A.
owned or operated track, or any track following the N.H.R.A rules. For further rules and
regulations on fuel systems, please refer to page 140, section 1:5 of the N.H.R.A.
Rule Book

H. Tighten all of the fittings at all of the joints and prime the fuel system. DO NOT start
your engine! Just prime to check for leaks at the injectors, rail fittings, regulator, and fuel
inlet. To properly set and check pressures, it is recommended that you use a fuel pressure
check gauge at the regulator or an -8 to -8 fitting supplied in the fuel systems. An under
the hood gauge as well as a cowl or inside your car gauge will help in tuning your engine
to it's peak performance. Note: Do NOT run fuel inside the car; An isolator kit will be
needed for cockpit mounted fuel pressure gauges.

I. Once you have checked for leaks, start engine and check again. Periodically check
fittings and hoses for leaks as well.

Please call out office @ 210-333-1642 if you have any questions. M-F 8:00 am to 5:00 p.m. CST