A true bolt-on, the throttle cable is a
direct hookup.
The Sniper unit is completely self-
contained. The ECU, fuel pressure
regulator, TPS, and IAC motor are all
built in.
Holley also sells a master kit that
includes an inline fuel pump if you
prefer to keep your existing tank, but
MCR much prefers to use a new tank
with an in-tank pump. It runs quieter,
and a clean tank is a must with any
type of EFI.
All EFI systems require a fuel return
line, but the factory one on this car is
too small, so MCR used the original
fuel line as the return and routed a
new flexible high-pressure (250-psi)
fuel line from Earl’s as the fuel supply
line. It can be connected directly to
the back of the Sniper.
drivetrain thoroughly warmed up, MCR
went for some full-power runs, and after
only three pulls, the system seemed to
learn what it needed to know and
produced 329 lb-ft of torque and 244 hp.
Huge gains were not expected, but
neither was having to do anything to get
them. Literally no changes to the default
settings were made. The Sniper did this
all on its own.
So what’s the verdict? The QuadraJet
is a direct bolt-on and worked fine, but itrequires some dyno time to optimize.
The Sniper needs a new fuel system, but
it’s not real hard to do. It optimizes itself
very quickly and provides some tuning
options via the target A/F tables that
would be very difficult with the carb. The
touch-screen allows close monitoring of
engine vitals, and it can be data-logged if
one really wants to dig into the numbers.
Q-Jet or Sniper EFI? Your call, but no
need to let fear or cost of EFI tuning be a
factor.