Yep, that was the plan (years ago) but the old one pulled out of a box on the farm worked perfectly for 7000 miles and hundreds of dragstrip passes. No need to change what was working.
Fortunately I have great friends and one of them upgraded to a smaller style and gave me his practically brand new unit. The new one had been sitting on the shelf for a couple of years.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.