Distributor Recurving?

update

after playing around with the curve in the 273 HP and setting the timing , I tried setting the total timing at 36* and appears this stock 273 hp does not like that much timing .luggish ! backed it back down to 34 total with a curved distributor at 18* inital and runs really strong there. haven't tried anything lower yet with timing. pertronix III ignitor in the dist.stock afb 500
loves to fry the tires at a roll.:happy2::burnout::burnout: and it pulls really hard in third gear too . big top end pull . (4 sp. dartcharger ). 3.55 gear.
Love this car !! sleeper !!