converting throttle body to 4 barrel carb.
I have a 1988 chevy k1500 p/u with a 350 throttle body injection, OBD1 controlled.Want to convert to a 4 barrel carb. Intake requires 12 bolts, 8 (4 on each end) bolts square with head surface and 4(2 on each side) that bolts straight down, not square with the head surface. What intake manifold do I need?