Wide ratio 904...good vs. bad idea

The car: 72 Valiant, w/ 225, when finished the engine will be warmed over, but not a fire breather...

The goal: Get a little more "get up + go" without killing drivability...

The idea: Change gear ratios...the rear is 2.76, so keep that or change to 2.96 or 3.23, and a wide ratio trans.

The questions: Should I put a low first gear into the 904 I have, or get wide ratio trans, or none of the above because it's a stupid idea?