[Jesse_Bolt]

Both the Boss 302 and 429 continued into 1970. The 428 Cobra Jet continued as the top engine choice for the Mach 1 Mustang. New for 1970 was the 429 Cobra Jet, standard in the Boss 429. The 429 Cobra Jet was rated at 370 bhp while the Super Cobra Jet was rated for 375 bhp. This would be the last year for the Shelby Cobras, which were in fact left over 1969 models with some minor trim changes. A not so great end for a once great performer.

Production:
Mach 1: 40,970
Convertible: 7,643
Grande Hardtop Coupe: 13,581
Boss 302: 6,318
Boss 429: 498

Engines:
200 I6 115 bhp.
250 I6 155 bhp.
302 V8 220 bhp.
(Boss 302) 302 V8 290 bhp @ 5800 rpm, 290 lb-ft @ 4300 rpm.
351 V8 250 bhp.
351 V8 300 bhp.
(Cobra Jet) 428 V8 335 bhp @ 5200 rpm, 440 lb-ft @ 3400 rpm.
(Cobra Jet) 429 V8 370 bhp.
(Boss 429 - Super Cobra Jet) 429 V8 375 bhp @ 5200 rpm, 450 lb-ft @ 3400 rpm.

Performance:
(Boss 302) 302/290: 0-60 in 6.5 sec, 1/4 mile in 14.8 sec @ 96 mph.

JB