Aluminum vs cast iron cylinder head suspension effects

or just put some ballast in the trunk ............ that's a joke,btw.
I got my 68 Barracuda down to about 3200 pounds and 52% front weight bias with almost no effort. Well the dual 3" exhaust was 72 pounds IIRC. and the rear seat was nearly as much, lol. Lightweight alloy wheels makes a pretty good difference, two of those 10inchers weigh about as much as one rally wheel. The alloy-cased 4-speed with a GVOD, weighs about the same as the iron-case 4-speed did, all by itself. I swapped out the ancient factory buckets for a pair out of an RX7, that weighed next to nothing.
Yes to an Alloy top-end, and yes to a lightweight rad.
But I kept the P/S and P/B
The Spare-tire well is packed with tools and spare parts. I've only ever had one flat tire since 1998.