i am glad it sounds cool.
straight thru mufflers i am referring too would be quieter and generally cooler running comparatively. but would sound much different.
i
was considering the location of the restrictive mufflers so far away as actually increasing overheating issues you had with your original radiator. if you went to dyno's or stepped up a size or so with the flows you may have cooled the engine enough to have been perfect with the original radiator cooling.
i too like the sound of flowmasters....but flow restriction masters sometimes is a better description.
not staying under 240 with the radiator you had is a big flag to me.
i have full confidence in griffin. i considered the nascar setup, but the actual size of your radiator with the ac demand will benefit with a bigger radiator and as you yourself said power is addictive. if you keep it fat in fuel it should run cool and happy. but you build power or tighten the burn things change fast.
while your in here doing surgery it may be wise to take a minute more and invest a little more work into this all around.
i would not think twice about cutting off and widening the rails from the k member forward so that fitting the charger jewelry up front was a non issue along with a huge fat bastard radiator and ac condensor from a bus
.
just throwing stuff out there