I forgot to mention that I had 4 different sets of heads on that pump gas 400 block stroker motor, 2 with 440 ports sizes and 2 with Max Wedge size intake ports, all with the same camshaft and the last three sets used the same brand and ratio rocker arm set.
On your deal if I was you and knew that your going to switch to a stick shaft tranny in the future I would step the cam up now
I would look for more duration and net valve lift at the valve, I would go for around 240 to 250 @.050 on the intake lobes and a little bit more duration on the exhaust side with the same or more lift
On the heads if you choose a set of the ported Trick Flow 240 heads and a matching intake and a 850 CFM or bigger carb. you should be able to make around 550 HP on 93 octane pump swill with ease with a stock stroke 440 motor
if you choose the larger Trick Flow 270 heads and matching intake you will be north of 570+ HP with al the same parts in that short block, cam and compression ratio.
If you where to go to a 4.25 stroke crankshaft in a stock 440 block with the 240 heads, intake , camshaft and same size carb. and kept the compression under 10.5 to 1 your going to be well north of 600 HP on the same fuel
I have found on aluminum headed Mopar BB motors they will make more torque than HP under 10.5 to 1 compression and make more HP than torque above that compression ratio
Torque moves the mass, especially at the lower RPM, HP moves the car above peak torque RPM