big block a body swap

The 68-69 HP manifolds are the best flowing. They will handle up to around 450 HP and they will fit your car, since you have the later body style (67 and later). They fit the low deck better of course, but will also fit the 440. The passenger's side drops in and the driver's side requires cutting the column tube back to the firewall. Might be some other small things as they are all a little different.