Opinions WANTED (Tunnel ram)

since the cam is TBD I'd recommend a high lift, short duration cam to make life easy on you

I run the mopar 474 lift p4452992 cam and run 12.56 @108 with 3.23 gears out back

get 16 mpg on the highway and drive the balls off it - 150 miles each way to carlisle and 130 each way to ocean city md.

The 450's are a mechanical secondary carb and have no secondary accelerator pump - they would seem to bog, I bought them first and returned them while looking at that arrangement.

went with the holley 390 and never opened them up - i did adjust the vacuum secondary springs for street ( purple) and track ( short yellow) but other then that they are stock.

Like joe just said I just went to EFI on them and have about 1000 miles on the setup now. night and day from ANY carb to efi....