Engine build on the brain

I agree with nm9,100%, and would like to add;
You can spend the money on pistons to pump up the Scr and you might feel the financial pinch, but once on the road you will never be sorry. Or,
You can leave the Scr where it is, and then experience the loss of performance below 3000/3500 with the stock convertor. And so then, for same money, you can buy/install the higher stall TC. Now you can blast off like you would have been able to with the higher cylinder pressure. In this instance,I call the TC a band-aid.
But the lower cylinder pressure will never make the midrange performance that the Scr change would have.
So IMO, the better way to go, while spending similar money, is to pump up the pressure in the first place. You will never be sorry......... unless you get too greedy.
Now, if you are gonna install alloy heads, it behooves you to pump it up, else the alloys will not work to their full potential. They will love 180 or more psi. Some fellas on FABO say that they are running 200 or a tic over still on pumpgas. As for me, I have run 180/185 on 87E10 with full timing,at 930ft elevation....... since 1999.
And I can tell you that this combo never fails to make me smile; whether idling in the driveway , romping around town, or tearing up the dragstrip. And, and, I run 3.55s with a 4speed, that I never have to rev up to blast off.
With lack of pressure,depending on the stall you choose, you will be looking at more rear gear, perhaps up to 3.91s ............... perhaps more.