Doing it right -need some advice

I have a 70 Dart with a '68 340 4.10 and soon to be 4 speed with Passon OD gearset.

I rebuilt the engine about 10 years ago and admittedly just wanted to get it running. (I didn't really follow any build, other than following the machinist recommend needs for the block.) Plus I was pretty young back then. Now I am wondering if I have parts that aren't complimentary to each other. After reading and learning from here.

Here is what I know on about the engine.
68 340 .040 over
KB hypers
Forged crank stock
Stock rods
CRS 268H-10 cam (specs attached)
Air Gap
Stock heads 2.02 intake
273 adj rockers
MSD ign without vac advance
Fitech EFI

I am going to take the engine out to mate the 4 speed and motor together, so while it's out I was going to do a true compression check and see how far out the hole or in the hole the pistons are. That will give me some ideas on where to go.

I saw the Edelbrock Performance package (heads, intake and cam) yielding 417HP.

The goal for the car is a torquey street car. The OD will override the 4.10 on the freeway, but I want something that is really fun to drive, but not have to be a high winder to make power. Few pics of when I was putting it together.

Screenshot_20220116-085936.png

IMG_20130204_193552_132.jpg

IMG_20130202_202921_512.jpg

IMG_20130204_193559_950.jpg

IMG_20130423_200627_241.jpg

IMG_20130423_211252_476.jpg