Lockup to non-lockup question(s)

What’s your rpm goal on by the hwy? 276s and a little taller tire can get u under 2000 rpm easily at 65/70 mph. A good name brand tork will solve the drivability problem. U can do this all for around $2 grand. Ex= tork $700-1000, nice used gears and a sure grip $450.00 or use ur sure grip then gears are only $50-$200. Tires u have may be tall enough. A 26 inch tall tire will do it. Try the gears and tires to see how u like them first. U may not rant to change the converter. U have a 340 in there do u not? I’ve ran many different purple cam in my street 340s with every gear set under the sun. Swapped in 276s and drove from Unity Sask to Victoria BC with no ill effects. Good luck 2 ya buddy, I wish u well. Kim