400 low buck dont give a

Instead of pretending I know the best of every combo I'll just tell you what my 64 polara did with a 400 when I was a kid. I had mild ported 452s stock rotating assembly, tm6 intake with 750 dp carb, old racer brown 286/486 cam, 1 3/4 headers and nothing more. Also had a 3000 stall converter with 3.91 gears. That old 70,000 mile bottom end 400 ran 13.20s all day long while driving her to the track so I have love for the 400 especially when you stroke them out what a great motor! So I say go for it!