Which engine is Cooler?

Wel , I am building my Daughter a '65 Barracuda and struggeling with the "WOW" factor you get when you lift the Hood or the "WOW" factor of Driveability,MPG and power. Reading Your Thread has solved that for me ! It is Threads like Tincup has started here that answers alot of questions. HEMI , OBD II , and drive the wheels off it ! GOOD LUCK ! Tim (Dad)