On my street/autocross 1200 I'm running 250# springs in the front. They seem to match up with the rear leaf springs nicely. If you stiffen the front with higher rate springs and/or stiffer anti-sway bar you will need to add a rear anti-sway bar, preferably an adjustable one so you can balance the handling of the car.

Standard front springs are 90 lbs/inch
Typical recommendations be:
* Serious street racer: 175 lb
* Dedicated track racer: 250 lb

The 500 lb/in is probably people thinking about new VW Golf, a much heavier vehicle, and other similar overweight "small cars"

I'm in the process of getting all the parts needed to convert my stock struts to coil overs.

The only problem, what kind of spring rate do I need?
The vehicle in question is a Datsun Ute with a A14 in.
Will be used for gymkhana racing.

Some clever okes reckon 500lbs others say 200-250lbs.

Does anyone know the rate on the standard springs on a ute, because that is way to soft.