Finally decided on a cam for teen SB. Should I bother with header?

cudaracer said
Had the cam installed. Initial timing set to +14deg, 34 total. Runs good, up until about 85 mph, and then it was like I was running out of gas and could not go any faster. Did not really hear a ping, just falls on it's face.

Dialed it back to about +10 deg intitial, run it again, and it made it to about 95 and then hesitated.

Is this normal for this cam and my hardware?
Where should I be?

I solved the problem. It was not the timing, but in fact an old plugged up fuel filter. Have no idea how old it was. When I took it off, brown sludge poured out. Added new filter, and problem solved.

Loving the new cam, but missing the top end surge.