1 round or 2 ?????

[FlatBrokeRacing]

I have the front coil springs out of my 81 Stepper, in the middle of a static drop and want to cut the springs down. Seems like I remember reading here that 2 rounds was the most recommend and still be streetable. 1 round = about 2in, so 2 rounds = 4in......is this right..... Tell me what you think.....

Truck is completely stock. No baggs or spindles anywhere.....
Guess I'm just to cheap...

Thanks for any and all advice...