A buddy and I filled up before our ride the other day and when we got to stopping point I said, I am going to need some gas soon. I had maybe a tad over 1/4 tank left. He still had 3/4 tank full. His is a gen 1 busa and mine is gen 2. Not sure on all his specs but i know he has 4-2-1 exhaust. Should I be eating that much gas? Any ideas? Should i look at dyno'ing?