suggestions for my 340?

I can tell you for sure it is low geared, I dont know the exact ratio Number, but based on tire size, rpm,and speed (gps verified)... it is in the high 3.8x or low 3.9x area for a rear gear ratio. It is a sure grip as well. I am planning on taller/fatter rear tires shortly. Intention is to help with the gearing.

It is indeed a 340. Saw the numbers on the side of the block. Just not sure if its numbers matching or not.

Good heads are planned, just not at this minute.

probably just going to do intake manifold and maybe carb for now, and build myself a motor so I know exactly what I have. I will keep the motor in it for a 'tame' setup.

side of block says 2780930-340-4 (not sure if 4 is last # or not, hard to tell). VIN is VS29H3B348450 . bah, thats the wrong block casting... need to see if its matchng numbers. gotta find the plate.