Hi Dave!
Silver State, I believe.
I think you will want to run some higher RPMs on that course to come through turns and such. 100 MPH will not be hard, but averaging 100 will require higher straightaway speeds to average out the lower corner speeds. So, I believe you are really going to want to make power from 3500 - 6000.
My drag testing and feelings (seat of pants) on street/roadcourse/autoX tell me that the Clifford will start making more power than anything else above about 4000-4500 RPM, so I would use that (non-WH) Clifford. I have run Aussiespeed long and short and did not see much drop in perf at lower RPMS, but plenty of drop above 4500 compared to a Clifford. Aussiespeed long runner is very good at lower (sub 4500) RPMS on a 250 HP motor. I imagine the fat pak will give you great perf up to about 5000 and maybe higher. The runner areas are much bigger than Aussiespeed and probably substantially bigger than Clifford.
The 3X350s might work well, if you can get it to throttle respond. I doubt the Hilborns will have much range to them and will not have good throttle response or recovery.
Offy 2X1 and 4V will be too small. No question. If you had a 3X2 weber or IR EFI setup, I might say use that... Webers might require lots of tuning time and/or are $$$.
How much HP are you trying to make and how heavy/big/tall is the car? What transmission, brakes, chassis, rear axle?
There's a start, anyway...
Lou
