[SierraStormZL1]

I’m at the point that I’m ready to start upgrading for more power. My goal is around 700 WHP while keeping it still streetable, but I’m a little lost where to start even after reading tons of threads and watching many videos. Everyone seems to have different opinions and thoughts on the matter, so I’m asking for some wisdom from those that been down this road.

Already have a Bora S-Type catback exhaust, Rotofab baby CAI, DSX custom lid and Mighty Mouse Mild Catch can with the Stock tune on Nitto 555 RII’s.
My initial thought is to start with Long Tube headers, 103 TB (which one?), Ported SC, Upper Pully and Tune. Maybe upgrade to the Big Gulp at that point? However I think that only gets me probably mid 600’s or so?

I do not want to do any sort of Flex Fuel or Methanol. I’m in an area where I don’t have access to Ethanol fuel and I’ve done Methanol on my Sierra and not a big fan.

The one thing I’m struggling with is going beyond the aforementioned mods by cracking open the engine to do a cam, etc. I love the idea of the cam and that LOVE that sound, while adding stronger internals and more HP. Just not sure I want to go down that path. Is it worth it?