You can accomplish the same thing and even more so by moving the weight out of the front of the car. Things like fabricating a tubular core support. Small aluminum radiator etc. Any weight removed from the front will help along with good front springs and shocks. Remember like weight and balance in an aircraft the same weight makes a bigger difference the farther it is from the center of gravity i.e. 100 lbs at 1 foot is equal to 10 lbs at 10 feet. Ofcourse moving the engine back helps too it's just more involved and expensive. As a general rule the more power the car has the more weight it will like on the front
You hit on two things that I definitely should tackle first- radiator and support! The radiator, although it is aluminum, is huge...don't remember the measurements but it's wider and slightly taller than a standard A body radiator. And, I've NEVER had any temperature problems whatsoever- but it is the absolute heaviest aluminum radiator I've ever saw! Since it's no longer street driven, I can get away with a much, much, much smaller radiator, not to mention saving water weight also.
Radiator support is still mostly stock except where I had to modify it to get the radiator in. Years ago I had a '68 chevelle race car, and I built a radiator support for it out of aluminum tube and angle. It did the job just fine and was a good bit lighter than the factory radiator support. Gotta get one built for this car.
Already has good springs/shocks, and like I said the thing works great. Last time out, over 8 passes, it went 1.491, 1.483, 1.488, 1.494,1.498, 1.491, 1.496, 1.485. First pass was at 11:44AM, last pass when I lost at 3 cars was at 10:26PM. Over almost 12 hours and from daytime to dark, I don't think that's too bad. Part of me is never satisfied though, and with nowhere to race right now, all I can do is think of crap to do to it to try and make it better!
Another reason I had given setting the engine back was it's probably time for some motor plates, or it will be before too much longer. Think I could shift it back maybe 1 1/2-2" without too much trouble, but still I know it'll end up being a pain in the butt. Wish there was a good way to lighten up the front frame short of cutting it all to pieces!