Life in the fast lane

Went out with some biker friends last night. Needless to say 3.91 gears absolutely sucked. I have a 360 ede heads,rpm air gap, xe284 cam, sp 405cp pistons, stock rods/crank, 273 adj rockers, 727, holley 750 street hp mechanical.

I am thinking about putting the 275deh cam back in and the 3.23 742 3rd member.

It burned a quart of oil. I'm guessing from the 4500rpm average.

On a side note I raced the fastest Harley in the group and smoked him.

Why did this combination, fail? Seriousness, what are the problems?....