ok bought this beauty in January, it's a 2019 ss2 package. I have the original build sheet. I think theres a couple of zl1 options on her as well. 1st question is there a speed or rpm limiter on my princess. 2nd question its dual exhaust to rear end then single muffler with dual outlets, can I make it dual all the way. 3rd question will sta bil marine additive help in any way with the ethanol in today's gas. Fyi when I test drove it salesman at dealership recorded us at 125mph how much faster will she go. My last camero was a 69 as I was 16 in 1976 when had that beast. Thinking of taking my red princess to the Texas mile in Oct of this year, but if I'm limited on speed I may not. Thanks for in help or advice yall may have.