Making a little more progress with the 461. EFI is a Holley HP system. While not the cheapest solution, I like the Injector Dynamics LS style injectors. These are the shorty ID725 high impedance injectors mounted on a Torker II EFI intake, ported to match the heads by Dave at SD Performance.
Fuel rails are Edelbrocks.
I fabbed up some stainless standoffs to raise the fuel rail slightly higher to accept the 48 MM (O-ring to O-ring) injector height. No changes needed to the intake.
I also added a 1.5" Wilson spacer under the throttle body, this buys me some additional plenum volume, and raises the throttle body high enough to let the linkage clear the fuel rails.
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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
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