I see on a few post you did the 5.7 and 4 speed how was it to drive compare to a 340 or 360 ? I have a demon and just blow up the 340 I had in it so now was thinking of the hemi swap how is it for power ? driveable ? not going to crazy just cam swap later would you do it again if you had to do it all over again ? how hard was the 4 speed to install I see you had to cut the input shaft