1320- I sent you a PM. Sorry I didn't call you back, I will today.
Slow-V6 - I found this thread I made a while back on tech:
http://ls1tech.com/forums/appearance...ight-pics.html
They are big, and at certain proportions, look awkwardly big in the car IMO. Namely, like you said, with the tops down and looking down on it. They weren't too high (I am 5'9") as I had removed most of the electric gear on them and they were just super comfy. I weighed them at 18 pounds without the mounting bracket and sliders, and by memory, I recall the stock seats with the power adjustments being similar in weight, if not heavier.