In the last year , I have driven several makes and various engine sizes/ HP
The best balanced seemed to be the 351/392 versions of the Foed small block--the larger engines just seemed heavy on the front end--they would definitely benefit from a weight loss plan--alum heads/manifolds/water pumps, smaller lighter radiators, removing unnecessary
oil coolers and remote filters, and maybe even a lighter wheel/brake combo
A carbon fibre hood, lighter valve covers and aluminum bell housings would remove another 50-60 #
Jerry