That's great info. Thanks for posting. After reading it, I looked up some details at the manufacturer's page. At this point I plan to use a standard seat and seatbelt for the autocross portion and the initial drag race run. If the nitrous oxide drag runs look like they'll run in the mid 13s or lower, I may use the race seat bolted directly to the floor and rollbar. I expect that before this engine runs the car into low 13s it will make smoke and a rattling noise, then grind to a stop.