Car of the Month – September, 2025
1967 Shelby GT350 (Paxton Supercharged)
1967 Shelby GT350 (Paxton Supercharged)
Engine – 289 CID supercharged V8
Transmission – 4-speed manual
Horsepower – 390+ at 6000 rpm
0-60 time – sub-6 seconds (estimated)
0-60 time – 2.7 seconds
Top Speed – 150+ mph
MSRP price – $4,747.00 (with $549 supercharger option)
Joe Granatelli called Carroll Shelby in 1965 with the idea of offering a supercharging kit as a Shelby GT350 option. Shelby loaned an early GT350 to Granatelli who subsequently demonstrated the prototype in July of 1965.
It was a straightforward conversion that completely transformed the GT350. Awed by the car’s increased performance, Shelby made the package a special-order option in 1967.
The new 1967 Shelby model, drastically restyled, reflected the look of performance while also being able to deliver it. A unique grill with two seven-inch driving lights could be found under the fiberglass nose extension, which was exaggerated from the production Mustang. Equipped with the special-order Paxton supercharger, 4-barrel carburetor and Carter high-volume fuel pump, and with over 390 horsepower on tap, these cars were capable of 0-60 in less than six seconds and topped out at over 150 mph – astounding performance for that era.
The blower setup was also made available over the counter, with Shelby dealers offering the Paxton supercharger system as a dealer-installed option for the GT350. (Between 50 and 100 were dealer-installed superchargers.)