GR8RALLY
To get into the 11's, I don't think you will be on drag radials. The reason I say that, is at the Run & Gun this last year, I helped Doug Reed the owner of the Superformance dealership in Chalmetta, LA, put drag radials on his SPF with an all aluminum 427 motor (it was a wicked motor too) to get better times at the 1/4 mile. I do not have the specifics, but I do not remember the drag radials making a big differance in Dennis Ohltoffs passes, or Doug Reeds.
Point is, you want low et's?, go get those wrinkle wall drag slicks with the soft compound rubber. I don't think you would want to run em on the street, but they will really hook up.
One item though, when you do get low 11's, or 10's, the standard roll bar may not pass your local track rules. Also, once you start hooking up, we used to say "when you play, you pay" Be ready for "the weakest link" to raise it's head.
I am not sure I would want to use true slicks (wrinkle wall) with 600 HP on a regular basis. But to say "Been there, done that"....yup. I'd frame the ticket! Hope when I do, I have a good 0-50 feet.....
Great Asp