[kdrolt]

The full N10 dual exhaust from an LT1 will fit a TBI Bcar v8, but several mods are needed to make it work.

The LT1 exh manifolds each need one extra hole drill in the flange to bolt onto the TBI heads, and then you use the LT1 downpipe/cat. The EGR and AIR hole(s) in the LT1 exh manifolds need to be plugged, and you'll need to either use the 94-96 Bcar trans crossmember + 94-96 trans tailshaft housing to allow room for duals, OR you have to modify your existing crossmember. The TBI cars had body provisions for duals on the left side that were engineered into the car but never used. IIRC my neighbor used a hybrid of 91-93 upper hangers and 94-96 lower hangers (to mate perfectly with the 94-96 factory dual exh).

The bottom line is that the N10 duals from a 94-96 LT1 Bcar have been used by at least 3 people (all in New England) on TBI 305 and 350 engines.

Other than the exhaust, and the body/suspension parts, there's veryy little of the 94-96 engine that can be easily used on a TBI car.