Its an FE. The runners are already as long as your leg... JK
Realistically, the modified Victor seems much better than a tweaked Dove I also have. Of course my old Holley Street Dominator (complete with about three pounds of epoxy) was also better than the Dove, but external welding rendered it illegal. The cam on the other "sister" engine is longer duration - - has the same RPM HP peak, and it soots the intake so I know thats not right. I have the HP peaks right where I want them at 6300-6400. I just have a "feelin' that some exhaust changes - - maybe dropping pipe dia or collector dia - - would help fill the hole... A shorter cam might find its way in next time...