Mike - thanks for the story! Don't you love it when you can look back at the weekend and see solid, stress-free progress on the car. The fact that the family gets into it as well is an added bonus.
The gokart shots look good. One word of warning - don't let OZVENOM near your red calipers. I "riced" mine up with some VHT caliper paint, and I didn't hear the end of it for ages. I spilt some brake fluid on them, and the red paint bubbled off my Wilwoods. I think if I let him at my car one day, he might just give my calipers a nice bath in brake fluid to finish the job.....
Your header design looks like they came straight out of a custom exhaust shop. With shops charging $1000+ for headers these days, you've saved yourself some sizeable cash! I thought Darren might try to steer you towards his Top Fuel header design. 8 bits of straight tube - big diameter. 8 x 90 degree bends. Job's done!!!