we are currently testing a new lifter. These are almost identical to the stock lifter but are approx. 1mm longer so if you are using a regrind that requires shims, this will go in without having to use a shim. it has a large bleed hole on the top, and can withstand a lot more abuse and rpm than our other lifters. We have tried them on our drag car, w/o issue, but before we release them for sale, I'd like to try them in a couple of road race applications. If you know anyone running one of our regrinds and they have a motor that easily spins past 7K, we would like to talk to them.
Later,
Cindy