Jimbo, I appreciate the opinion but how many 2014 Mustangs have you driven? The final gearing ratio in my new car with 3.55 gears and 28" tall tires is LOWER than the Bullitt with 3.73 gears and 27" tire. 3.55 gears in this one is equivalent to 4.10 gears on the older ones.
Driven a 2011 automatic...and a 2012 manual, that's it..and that's a year ago.
The auto had a 3.15 rear gear. ( 1942 rpm @ 70 mph in 6th with the 3.15)
The 2012 manual had the optional 3.73 rear gear..... (2166 rpm in 6th gear @ 70 mph with the 3.73). ( 1922 rpm @ 70 mph with the 3.31)
BTW, I was sure the 11-14 cars ( manual) all came with a 3.31 rear gear... (and an optional 3.73). Are you saying the 2014 now comes with a 3.55 rear gear ??
To do this right, you really need to make up a spread sheet with max speed in each of your MT-82 gears @ red line vs various tire diameter's vs various rear gears.
See my previous post with all the various gear ratios for all the tranny's.
BTW, how much rpm do you have..in 6th gear @ 70 mph ?? Mine is 2100 rpm with my 2010 auto...and a 3.31 rear gear (.71 OD) ...and a 26.97" tall rear tire on a 10" rim. ( nitto-555's, 285-40-18).
With the simple mods like LT's, DS, 91/93 tune..and the correct rear gear, it will be a rocket...and no blower required. Typ with those mods, folks see aprx 430 rwhp....which is plenty for a street car.
If you really want to go crazy, VMP has just released it's all new gen-2 TVS-2300..which flows 18% more air than it's gen-1 (and gen1 flows a helluva lot more than the roush TVS-2300). Gen-1 has the D shaped elbow. Gen-2 has a massive intake, and no separate elbow. The casing + elbow are all now one piece. Even the Roush 2300 will do 575-625-675 crank hp..and that's with a roush tune and no LT's. 585 rwhp with a roush 625 crank hp blower is typ. The vmp gen-2, with a 93 tune + LT's will make a lot more..... but how much do you really need for a street car ? If you are still into drag racing, go for it.
If it was me, I'd try the LT's / DS /93 tune / rear gear 1st for several months. Those 8 x plastic runner's won't heat soak like a roush /vmp aluminum intake manifold + 2300.