On the front shocks the DA BNC Afco's are the hot ticket at moderate prices. They have valving to control bounce hence the 'BNC' and you can slow down the front if that becomes neccessary with the extension tuning. Santhuff are top of the line as are JR1, and I hear good things about the Strange parts but have not run them.
On the back, going to the upper hole will make the hit more violent and will escalate the need for a DA shock to control extension as Jeff mentions. You'll get ET improvements if you can get the car to launch forward rather than upward, but its not as impressive. Small tire cars do seem to benefit form the height sometimes as the time at 100% weight transfer covers the torque multiplication peak 20-30 ft. out.
The open tracker roller perches will free up the front suspension adding to your speed of roatation on the launch, e.g. bigger wheelies absent adding control via the shocks.