Insurance and swaps.

I don't know about you guys but I have Allied (Nationwide) insurance (full coverage) on my '70 Duster and as long as I get it appraised and keep track of receipts for parts and work I can insure it for however much it's appraised for. I built a new 360 for it and upgraded/restored most of the mechanicals and hope to get it appraised for at least $6000 (originally worth $3000) once I finish up a few more major things.

I'm also pretty sure I have no limit on mileage, I've never had to give the insurance co. any mileage numbers. Good thing too because I drive my Duster every chance I get, I put probably 3000 miles on it in the last 5 months.