Cooling help?
 

Ok I am about to be installing my s-trim. Though my under hood heat will probably increase. Right now I have a 180t-stat, police fan clutch and I believe it may not be a stock radiator but looks like it lol. Anyway after warm up at idle I see 182 then when I get on it I see 190. What would you buy for around $250? Im thinking a good radiator. What would you recommend that wouldnt need any trimming or fab work to fit?

Cool
 

If you're actually seeing 190 degrees after acceleration than you're seeing operating temperatures at the low end of normal and there is no problem.

A Ford Racing 3-row radiator is a perfect fit in your Mustang and will noticably help cooling, if and when it becomes necessary.