- 1974 Dart with 904 transmission and 2.71 differential
- 225, rebuilt with 8.9:1 static compression and Oregon 2106r camshaft (7.7:1 dynamic compression)
- Super Six intake manifold
- Carter BBD clone 2bbl carburetor
What you didn't say is header or free-flowing exhaust.
Until you open up the exhaust, I highly recommend to not waste your time fudging with the Distributor. You will just get a lot of detonation and lousy fuel-economy.