I run Excel G short strokes with 8 and 6, and while somewhat under damped they still do an admirable job.

When i had 6 and 4.5 the car was much softer and more suited to the Excel G's, not really that uncomfortable though, easily liveable day to day.

You simply can't compare the dated suspension of the 86 with that of the chaser, its comparing apples to oranges. For some good shocks at a decent price id go TRD Blues for around 1000 a set. (they were until our dollar shat itself anyway)