I have Dave's 3021 in my car along with his rebuild (this past September). I live in the farthest NW part of the country and I shipped it to him through Fastenal. If you don't hit their truck transfer stations just right, it takes a little longer than expected. But, Dave's build is well worth it! I can't compare apples to apples on the difference as I went from a manual transbrake to no Tbrake and a PTC 9.5 to his spec'd 3021. The transbrake/PTC 9.5 version launched like a rocket (it should, it's a freakin' Tbrake!), but off the foot brake it's about .2 slower on the 60' and just feels "meh" in comparison. However, that 3021 couples like mad once out of the hole and my top end charge is awesome! I went from a fastest of 122mph to 131mph and my ET dropped to 10.70's from consistent 11.10's...even though my 60' slowed down. Incredible! If I can tune my 60' to 1.60, I can theoretically run 10.40's. I didn't change anything else between the rebuild.
Dave spent plenty of time on the phone with me planning the build, told me where to drop off the trans after sending me the shipping paperwork (it was close to my work), and called my as soon as he received it. Could not have been easier. We spoke several times during the teardown to let me know what was out of spec on the trans, so I learned stuff along the way too. He turned it around in time for me to make the last few race weekends of the year (read, fast turnaround!). Just plan on a few hundred miles of shifting break-in beforehand... I'm looking forward to some of his help next year tuning the car for those quicker 60' times...all over the phone. Can't say enough good things about Dave Husek!
