I picked up a very nice 1959 Tri-Power intake today.
1959 was the 3rd year that Pontiac offered the Tri-Power option, however the large-base Rochester carbs were used as the secondary carbs for the first time in 1959.
Now to find a center carb and a front carb, I already have a rear carb.
Casting #
532422
Date code '
L 15 8' (December 15th 1958)