I've seen 145 and 150 horsepower ratings
The power of the engine of the Chevrolet impala 6cyl 1960 is 230 HP
The power of the engine of the Chevrolet bel air 6cyl 1958 is 280 horsepower
The maximum speed of a 1965 Dodge truck with a 400 6 cylinder, 137 horse power motor is approximately 108 mph.
The power of the engine and the maximum speed of the 1977 Peugeot 604 6cyl are 80 PS (59 kW) and 119 mph respectively.
127 HP is the power of the Renault 30 tx 6cyl automatic 1979 engine and its maximum speed is 180km/h.
The power of the engine and the maximum speed of the 1977 Renault Alpine 6cyl are 110.7 PS and 220 km/h (137 mph) respectively.
60 bhp is the power of the Peugeot 604 6cyl injection 1978 engine and its maximum speed is 93 mph (150 km/h).
(hp): 151@5,600rpm is the power of the ford Capri 3000 6cyl 1971 engine and its maximum speed is 210 km/h (130 mph).
The 1980 Camaro came with 7 different engines to choose from. 2 of them were for California only, the 231ci 6cyl @ 110hp or the 305ci 8cyl @ 155hp (165hp in the Z/28). The other motors are the 229ci 6cyl @ 115hp, the debut of a 267ci 8cyl @ 120hp, a 305ci 8cyl @ 155hp, and a 350ci 8cyl (In the nonCA Z/28s) @ 190hp
The power of the engine and the maximum speed of the 1964 Truck Dodge d-400 motor continental 6cyl are 120 hp and 150 mph respectively.
1967 Mustang specs:Available Engines:200cid 6cyl 1V 120hp289cid 2V V-8 200hp289cid 4V V-8 225hp289cid 4V V-8 271hp390cid 4V V-8 320hp
Take it to a mechanic