i used an XE268 in a warm 9.5:1 340 Duster. Despite what comp say it needs a converter
with 3.23 gears and 15" tires.I used a dynamic 9 1/2" converter that stalled around 3000.
With timing all in @1800 (34) the car would launch hard in lo or just break loose if you were't
careful but detonated at times.
Re-curved to be all in (34) around 2800 and the power from 2500 up seemed limitless,it just kept
pulling hard well past 100 mph.
..Spent a lot of time tuning and with that converter it would break loose easily at lo speeds and was very fast! The 650 Edelbrock Thunder worked perfect for that build and when driven sensibly using vac advance and running 50 degrees total would knock off 20 plus mpg (hoser gallon)
...It did have some valve train noise...which i grew to like.I miss that car!
