Ralph,
Originally, Puff ran a 100 shot of N20 (the NOS Brand), but they were twisting axles, so they dropped it to a 75 shot. A Roush technician also wired in a disable link to tre tranny; no happy gas in 1st gear. Helped with hook up & launch as well as being a bit kinder to the drive train. It's a tradidtional NOS Dry system aside from from the 1st gear lock out and some minor ecu tweeks, also performed by Roush.
I think there is a link on the
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