360 with the 509 cam

i ran the 484 on a 10.5 cr 360 and it had a lot of top end, if you have power brakes forget the 509 or 484 for that matter unless you use a vacuum pump. More than likely you car will be faster with a cam in the low 220's @.050 . Like cracked posted maybe you can trade.

i agree, a 509 is gonna be a pig in a low compression motor.

i have this cam in my low compression 360, http://www.summitracing.com/parts/CRN-694302/ runs pretty good. i just have a stock oil system so i don't rev it real hard, shifts itself at 5600 and its still pulling like a bear. don't think i'd go a whole lot more on duration without the compression. i'd defiantly stay away from anything in the 240 range. a little more lift wouldn't hurt though.