is there a way i can remove my stock rev limiter my self or do i have to get it removed profestionally? if so where in So-Cal can i get this done. Also how much can i expect to pay.
I don't think an ignition box will do it on a 5.0. You will need a chip, an after market computer like a PMS, or you'll have to have somebody modify your existing ecm.
An ignition box won't remove your rev limiter. At least the 6al that I have didn't. You would have to install an aftermarket chip if you wanted to do it yourself. Otherwise I believe you would have to go somewhere where they know what they're doing to modify the stock brain.