TBI question
 

I have a 52 chevy truck w/ a camaro front clip. The engine is a 70 400SBC, however from the heads up is from an 89 truck. So it has a TBI for a 5.7 with ECM of course. My question is to get more fuel for my 400 is it possible to put a big block TBI on my 89 5.7 intake manifold and would it require an ECM change as well.

Thanks,