Back to the drawing board... stock low dollar 360
Something like the tach drive setup but with a steady initial through 750 - 850 rpm.
The blue dashed line illustrates what might be achievable with a moderately soft primary spring and heavy long looped spring.
DC/MP springs and advance shown over here for some eyeball comparisons.
P4120701 Small Block Mech Tach drive
Then heck, bring it in quicker, at before whatever rpm it sees max load.
Something like the tach drive setup but with a steady initial through 750 - 850 rpm.
The blue dashed line illustrates what might be achievable with a moderately soft primary spring and heavy long looped spring.
DC/MP springs and advance shown over here for some eyeball comparisons.
P4120701 Small Block Mech Tach drive