Factory Camshafts ~ 1968 340 '4-Speed' vs. Chevy '151'

Now this is a 'Magazine Sales Ad'

1968 340 '4-Speed' ........ .445" /.455" {Lift} ~ 284*/292* {Duration} ~ 60* {Overlap} ~ 114* CL

{NHRA} ......................... .462"/.473" {Lift} ~ 276*/284* {Duration} ~ 60* {Overlap} ~ 114* CL
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1968 340 'Automatic'...... .430"/.445" {Lift} ~ 268*/276* {Duration} ~ 44* {Overlap} ~ 114* CL

{NHRA}......................... .464"/.468" {Lift} ~ 268*/276* {Duration} ~ 44* {Overlap} ~ 114* CL