cam transition and crank cyl count in hpt

[orion4096]

There's a ls1 swap car which breaks up (loses a lot of power) around 5200 rpm on the dyno and on the street. I have a log of the cam signal transitions and crank cylinder count (see attachment). This is a standard OS tune with the MAF failed to put it in SD mode. LT trims are disabled, but ST is enabled.

- Around the start of the pull 3000 rpm, 100 kpa, 100% TPS the crank cylinder count stops counting up and starts going down.
- Around 4100 rpm the cam transition signals stop counting up.
- After the pull these signals start counting back up again.

Is this normal? If not, could this be the cause of the problem at 5200 rpm?

[orion4096]

Looks like the same sensor values happens on my ls6 swap car which doesn't have the problem.