A) Limit the caster, camber.
B) Check uppers, make sure they are stock.  Length etc.
C) Stock bushings everywhere, no prothane,etc. All rubber.
D) Stock sway bars, not stock appearing or late model with eyes welded on.
E) Stock wheel base and track width, no spacers
F) Equal rear axle spacers and springs rates. (Even equal front spring rates)
G) Equal ride height, side to side.

N.B. - the crates aren't the ones running high rpms. Its the builts that aren't wrecker salvage.

Those rules are already in the rule book Fromthestands but they are not enforced.  I can remember back a few years ago when Brian Thomas (former tech guy) brought a old nova to the track one night and told the street stock guys that there suspension pieces and mounting point has to be idenitcal to the old nova.  He gave them a weeks grace then if memory serves me right a few guys got DQ'ed the next week and cleaned the class up a bunch.

thats what they need to do is bring a stock camero and metric car and say if it ain't the same you better fix it or ur not gettin your money next time

V8 Cars - Single exhaust out let only - must exit behind rear tire.
          - No dual exhaust systems
          - Single outlet max diameter 2" (or even smaller if needed to slow the V8's down)
          - No significant exhaust leaks

Of course I have not seen current rules, but this could help the situation with out having to set any lap time rules.

this rev limiter works just fine
$90 USD

MSD Digital HEI Module with TCD
PN 83645