If your handy weld a slosh baffle in there at least. I don't think the falcon headers will work either. 428CJ exaust manifolds will fit but they are $$$$$ unless you can score a cheap set from someone. $500 the norm on Ebay. FPA makes a set of Tbird headers but again $$$$. If the budget is tight you can always make your own. The Tbird really needs these as the OEM's are really poor flowing. It seems the OEM factory headers are well sought after now by all the resto guys doing "correct" cars. I sold a set of 406 shortys for $600 myself. G.