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Also, X2 on the Weiand manifold, but unless you are running a spread bore carb (Carter ThermoQuad or a big holley), most carbs run square bore and you could use the Weiand Stealth.
Weiand Stealth and Weiand Action Plus have the same pattern, which is nearly identical to the old Edelbrock LD4B which was designed through Chrysler by Edelbrock. That layout is what you want, but the Stealth has a square bore pattern, wheras the Action Plus has both square and spread bore patterns on the top.
The Left is Edelbrock, Right is Weiand. The Action Plus has the spread carb pattern, the Stealth is like the Edelbrock on the left.
Even with needing an emissions test, needing to keep EGR is negligable.I had my '73 on std. plates and always had it blocked off for years. My brother isn't running it on his '88 Toyota. Most clinics won't bother, because they foul up so quickly and stop working anyway.
Your car is a '75, so I don't know if your state laws allow classic plates and/ or emissions exemption, but if not, it will need a catalytic converter in place to pass. It should have one on it.
Ditch the EGR and any other emissions hoses, charcoal canister and keep the PCV.
You will need throttle linkages and make sure that you connect and adjust your kickdown properly. Easiest way is to ditch the linkage and buy a LaKar kickdown cable and follow it's install instructions.
I don't know if TTI works with power steering, but shop around and see.
The reason you want the Weiand is because it has the best pattern for the application and is still available, unlike the Edelbrock LD4B. EGR is the valve on the right side (car's right) of the carb, on the intake. You will lose that when you replace it with a 4bbl intake.
The Edelbrock Performer is ok, but it's old tech. This is because it has an intermediate runner size that works ok with the 273/ 318 size and the larger 340/360 size, so there will be a step in the induction, where the intake meets the cylinder head, which is not good for flow/ performance. The Weiand has everything that the old LD4B did, right size and pattern for your engine like the LD4B, but it's new/ available.
If you had to disconnect a wire from your carb, that is the electronic choke feed. Electric chokes are nice for the street. If you run a manual choke, you have to set it with a push/ pull cable/ knob and fit it to your dash. For the street, use an electric choke.
Nothing bigger than a 650 cfm carb will be needed. Carb choice has a lot to do with preference of the car's use. Lots of guys who race like the Holley, Quck Fuel and Demon design/ layout, because of ease of tuning and they are simple.
Some folks like the Edelbrock AFB and AVS design/ layout, because they do better on fuel economy tune with some adjustments and leaving it alone.
I bought a Street Demon, which I would not recommend for racing, because of the jet install proceedure requiring the carb to be removed from the intake, but for street use, it has the design principals of a Carter Thermo Quad or Rochester QuadraJet and have small primary bores for good response with a large secondary for power when you want it.
Research your carbs a bit online and see what you want out of your car, then make a decision.
