valve float?

quake

toyota tech
Apr 13, 2005
619
0
16
r.i.
anyone using the comp cam valve springs and reving to 7k? I ran a data log with the stinger and when the car hits around 6k with a 67mm turbo @ any psi the rpm's go up and down. You cant tell on the tach but logged it will read 6100-6125-6115-6200- and so on.

I usually do all my own work but this time around i let the machine shop install the valve springs (comp cams) now i'm wondering if he put them in or if the stinger is to blame.