Hey all. Slowly piecing together stuff for my 440 swap this summer. Now that I've got my headers, I'm looking at intake and carb. I've got the original intake and Thermoquad off the engine, which is a 1977 440 lean burn. My question is on the intake right now. There is a 1969 440 cast intake on sale near me for $125Can, or I can use the original. Both would need a blasting and painting. Is there a big difference between these intakes? The engine will make 375-400hp, and be purely street driven. Obviously I'd like to save money where I can. As far as the carb, there is a fella locally that rebuilds the Thermo's, but I've been told the lean burn carb shouldn't be bothered with.