Originally Posted by curtis73
Putting a square on a spread intake is fine if that's the case. The problem comes when putting a spread carb on a square intake. The secondaries have to make such a radical transition to the plenum that it never works right, but no worries going from square carb to spread intake.
That makes sense. I'll have to check my manifold. thanks,
81 Grand Prix, 355, 700r4, 8.5" 4.10
64 Oldsmobile Jetstar, all original