Being a street car, I would still suggest looking into going power steering.
The improved steering ratio will put a lot of fun and ease back into the car it you want to do some occassional quick cornering.
I didn't address this in my first reply, and unless you have to have manual, I agree, PS makes a lot more sense especiall with a big motor, and there is as mentioned decent PS options. I just recently converted a slant 6 car to manual, hope I don't regret it.
I don't think even the Borgeson PS box will fit with the TTI hemi headers- which are 2-1/8". I wonder if the repro manifolds would allow more room? This engine is huge-wide; well the heads anyways.
I'll do some digging on it because I agree that PS would be alot better and then I'd be all in for 275's up front!!
I'm aware of Hemi Denny and the thread on loosing weight. I also have a '65 belvedere strip car (as does the guy in the thread- fullmetaljacket) we share ideas about shedding ##.
I'll look into the Earth X battery. I think that might be cool- plus not having to add 15# of 2ga. cable to the rear.
Thanks for the tips guys!