I mentioned it in another thread and Mike chased me off with a stick. But seriously, I got 1720 kg on certified truck scale without me in it, so 3780 pounds, probably subtract 30 pounds for the crap in the trunk, still a hearty 3750. This my 1988 Oldsmobile Cutlass Supreme Brougham when it had an Olds 403 with aluminum intake and shorty headers. So probably very close to the original swirl port 307 with a factory aluminum intake and tubular manifolds. Please post your make, model and options with the weight. Mine has the super padded interior with the split bench, no doubt adds a lot of weight. Thanks, post them up.