300 Times more powerful spark...

[tanny]

A hidden benefit to purchasing that 4 wire set would be a 33% increase in gas mileage for the Z. Kind of like the cylinder cutout method for increasing gas mileage on some of the newer cars. Well worth the price.

[sblake01]

Ah, the old V8-6-4

[seerex]

well honestly can't see how you all expect to add so much more hp with out putting on the adjustable aluminum < toy car handle style > wing , and besides if you can add the lower guage grounding wires i bet you could get atleast another 30-40 horses