What kinds of mods do you have done. I am gone SAS with fullwidth D44/9" from a '79 Bronco. I really don't think the weight changed much as I pulled a TON of things out of the truck to fit it all in.
When it comes to the engine, I have pistons almost half the weight of stock (Diamond Racing), aluminum heads, aluminum intake, aluminum throttle body (1/4 weight of carb), replaced cast iron timing cover with aluminum cover and cast iron water pump with remote mounted Meziere electric. Also tossing the steel pulleys for March Aluminum. I'm definitely gonna be under a SBF weight. I want equal weight distribution if I can do it.