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« on: August 23, 2020, 01:08:59 PM »
I achieved excellent results with cold starting, no fuel percolation, perfect air/fuel ratios from idle to wide open throttle, elimination of hard hot restarting by installing a Holley Sniper EFI system. My spark plugs are a beautiful light tan color 2 years, and 2,000 miles after install.
I did not drill any holes or modify my car in any way to install this system. A big help is the use of an aftermarket fuel tank with a built-in electronic fuel pump that fits perfectly and works with the Sniper. It is OEM quality with baffling built in. The supply and return lines are located in the factory fuel sender location. I searched for a month to find this tank. All others required holes to be drilled since the fuel lines came out of the top of the tank inside the trunk. That was unacceptable to me. Thankfully, I found this tank and it was less than $300. A home run.
If you drive your car using ethanol fuel, and want it to start and run like your daily driver, this system can be installed for approximately $1,500. It was the best classic car modification I have ever made. Throttle response is so good now it blows me away. Air fuel ratios are always perfectly maintained, as are the target idle speed you set with a touch screen pad. I can monitor air/fuel ratio and coolant temperature at all times using the small screen I keep in my center console.
The computer is located in the throttle body itself. That provides the advantage of all wiring is hidden under the big air cleaner. There are no separate boxes to mount under the dash or on the firewall, etc. All you need is a wideband O2 in one side of your H pipe, a coolant temp sensor, and power connections. I ran the blue power wire to the in-tank fuel pump through the interior so it is invisible from under the car. That took some time to remove the interior.
Here are a few photos of my install.