I'm having my 727 freshened-up..after 11 yrs. of abuse in my street/strip '69' GTX. I run a Turbo-Action Cheetah valve body,and a bolt-in sprag. It was recommended that I install a Heavy Duty Strut..HD Retainer,and a 4.2 lever,to replace the 5.0 that's in it now. Any thoughts on this modification...good or bad? I trust the builder wholeheartedly...just want some opinions about the lever...and why,EITHER WAY! Thanks in advance! Randy B.