1969 Camaro 375 Horsepower 70 4 bolt main
Just wanted to share my experience and total cost for my Holley Sniper install.
-Dropped the tank using a jack and a block of wood and some towels. ( empty tank is much easier to deal with learned this the hard way )
-Installed the fuel pump, make sure the locking ring is tight and the rubber gasket is seated right.
-Cut up and used a 3/8 fuel hose to protect the fuel pump hardline where the straps go over it and where it gets close to the tank.
-Drilled a hole above the fuel neck in the trunk and ran the fuel pump harness through
-Ran the 2 ground wires to a spot on the rear of the trunk grinded all the paint off first ( don't need to run the wire up to the battery negative of you are using the Sniper efi)
-Soldered in the brown wire to the purple wire which is the gas gauge
-Removed the back seat and passenger seat
-Took off the door sill
-Removed the plastic pieces by the kick panel
-Drilled a hole in firewall
-Ran the blue wire from the fuel pump relay through the hole using a grommet to protect the wires
-Also ran the pink wire from the sniper harness and tuning screen wire through the hole and hooked it up to a blade in the fuse box
-Unscrewed the screws that holds the sheet metal in place over the factory channels by the door sill and ran the blue fuel pump relay wire through there
-Soldered the grey wire from the fuel pump to the blue wire used a wire loom to clean up the wires
-Re installed the tank again using a jack and block of wood so I didn't damage or dent the tank.
-Ran the fuel line from the fuel pump to the factory hard line.
-Removed the mechanical fuel pump 2 bolts to hold the pump 2 bolts to remove the plate. ( once the plate was out removed the rod )
-Put the block out plate on and gasket used some gasket sealer as well
-Mounted the fuel pump relay on the fire wall by battery
-Ran the negative and positive to the battery
-Ran the yellow wire to the negative on the coil
-Mounted the Sniper used a 1/2 spacer hooked up the linkage needed a atp trans detent cable end
-Connected the fuel line from the factory hardline
-Installed the fuel filter then ran the line to the Sniper
-Installed the new thermostat housing and temp sensor
-Jacked car up and drilled hole for the oxygen sensor installed and plugged it in.
Started it and went through the steps on the screen.
Runs awesome starts right up. More responsive and the car feels a lot faster. Gas gauge took a minute to work but it works perfect
Think that's about it
Was a pretty easy install
Holey Tech was awesome as well
I def suggest it
Also I ordered through Holley and they took a few $ off the price I only listed the reg prices here
Parts list: total cost was aprrox 1600$
-90 degree 6an fitting and cap
-Holley Sniper EFI $999
-Holley sniper fuel pump module $349
-6 feet 100 psi hose and 5 fittings $45
-New tank $140 ( your stock tank is fine )
-Thermostat housing/with oxygen sensor 16$
-1/2 inch bushing ( local parts store ) $5
-anti squeak kit $20
-Carb Stud kit $4
-Autozone part #yr100 trans detent cable end $3
-Wix fuel filter #33482 (84 vette)
-fuel pump block off plate $9.99 got 2 shorter bolts for top 2 bolts local hardware store $3