318 Poly in an Early A Body?

I put a poly in my w200. I couldn’t bring myself to put the stock manifolds back on.... very restrictive looking center dump logs. I bought some flanges from ebay and built my own headers with a sbc header kit. Runs and sounds good, much more power than the leaning tower ever would have made. Used a rebuild kit from egge. I would not try to fit one in an early A. Much better options available.