Beautiful car! The Edelbrock AVS2/650 will give you excellent throttle response and good mileage. You will need the Chrysler throttle extension kit to maintain the throttle cable alignment. Like you, I am running the stock cast iron intake (and exhaust) and needed a carb heat shield because of how close the AVS2 is to the intake. Unlike a TQ, the Edelbrock/Holley's are aluminum so they conduct heat right into the fuel! The AVS2 carb comes with a 3/8" fuel inlet nipple, so if you are currently running 5/16", you will need to modify that. I also got the Edelbrock tuning kit so I could tune my carb to my engine. Not a lot of money but allows you to get things perfect. I agree with others that the TQ is excellent once built/tuned properly. I ran TQ's for years back in the 80's. The only reason I don't run one now is it is difficult to get a strip kit so you can tune the jets/rods. The AVS2 with its redesigned annular booster has excellent off the line response and won't let you down.