They are not that heavy, but you are looking at spending a lot of money. Dodge Hemi heads will fit and aluminum aftermarket intakes are available. Early Hemis are absolutely Cool, but you have a long way to go to get there. My limited experience is with the Chrysler early Hemi. I have been amassing parts for years. Dodge Hemis are the smallest of the early Hemis.
http://hothemiheads.com/