Front end setup (Drag Racing)

Got a chance to get out to the Garage today. It warmed up, so I did a bit of cleaning in the garage, and pulled the front shock off the right side front.
Loosened that side right up.
The shocks it has is Koni adjustable. The type you push together then turn to change the setting. It was set in the loosest setting. but boy does it hod the front end stiff.
On old shocks, where do you drill the hole to drain the oil?
long time ago. 67belveredere, worn front shocks w/ 1/16" hole drilled to let the oil out. 318 stock torsion bars, went 10.40-10.60~s fror 14 yrs. only handling problem(other than traction issues) was when a driveshaft broke at 128mph, and cut a 14" slick.