Mopar Manipulatin’ , HRM August ‘69
Comparing the 383 with 325HP and the 335 HP that came in the Road Runner is like the old adage of apples to oranges. The 335 had the 440 heads, a bigger cam and better exhaust manifolds. With all that going for it you think the gain was only 10 HP? My 68 RR beat a 427 Chevy and made me a happy Mopar owner.