Opinions wanted

I have close to the same build as yours and went with a Fti converter and it seems like different car. Stock worked but had horrible low in power. Double checked everything twice, timing, fuel, spark, plugs, carb, etc.. before I went for a new converter. The converter was the best upgrade I have done on the car so far. My stall range is 3400 to 3600 and works great on the street. The plus with Fti is that you will restall it for free within the first year if you are not happy with it so not too much risk except your labor time and shipping if you end up sending it back.

http://fticonverters.com/