Would a 2500 or 3000 be better for a stock '70 340 duster? Want something to perform at least as good as it did back when it was new. Present converter is a $50 stock low low stall. Might be 1200 rpm.
You have to remember that the spall speed varies a lot because of a few factors. Actual engine torque output, gear ratio, tire size and vehicle weight all comes into play to determine the actual stall speed. Hughes converters are real well made converters from what I've seen but the off the shelf ratings should be taken with a grain of salt. From what I've seen Hughes converters are usually tighter than advertised. I put a Hughes 2500 off the shelf converter in a buddies challenger that had a stout 440 and it just barely stalled 2500. My guess is an off the shelf Hughes 2500 will only stall about 2000-2200 behind a stock 340
