Need cam ideas for my 318 Duster

I want a cam for my 318 and need some advice.
I want my Duster to be an easy mannered street toy for day trips and once a while to the strip. My goal is to run a high 7 on 1/8 mile with a car that works good as a daily driver.

Swedish krona is way down and I’m on a budget so I have to build on what I already have as long as possible.

Car is a 71 Duster, body all stock except for fiberglass hood and bumpers. Full interior. Don’t know actual weight.

Engine is a 318 fresh short block rebuild I got from a friend just before he passed away. He had it as a reserve for his 340 he raced.
KB 167 pistons, .030 over
Manley H-beam rods
Balanced 340 crank
Zero decked block
An expensive adjustable timing gear (I forgot the brand)
SFI approved balancer
Milodon low profile 7qt oil pan
Edelbrock 60779 heads. Will do some blending and mild porting.
273” rockers
Have both dual- and single plane intakes to choose from (need to check exactly what I have), and a bunch of Holley and Edelbrock carbs. Well, I also have a very nice TQ "Muscle Car" gem.
Old long tube headers (1 5/8”) and full 2.5” exhaust with free flowing mufflers.
MSD 6AL and original old Mopar distributor (recurved but will of course need to be redone again)
No power brakes.
I have a small converter, have to check and see exactly what it is but I will remember it stalls at around 2,500-3,000.
727 auto.
3,91 SG. Have a 4.88 3:rd member with spool but I don’t think I wanna go that route since it will be a driver. And it’s unnecessarily fun on a rainy day lol.
28” high street slicks

I plan to clean up the runners and polish and do a little un-shrouding to the the combustion chambers.
I have access to machinery to shave them off a little if necessary to tailor compression ratio.

I will be very careful when doing rocker geometry and set them to “1/2” by the B3 Engines method.
Roller rockers is on my wish list, but it will have to wait.

We can get 93 octane from pump here.

Long post so I hope I got it all covered!

Here are my questions:

1. First maybe a stupid one: Would a little chamfering in the cylinders where the flow from the intake valve comes, where the intake valve is closest to the cylinder wall, in do any good?
2. What cam do you suggest? Can’t afford a roller. Afraid of today's flat tappet hydraulic cams and lifters. Have had my share... Not afraid of (and used to) mechanical cams. Like the clatter. Hopefully better quality than today's hydraulics too.
3. We have pretty good gas here in Sweden as said earlier. I’d say that 190psi cylinder pressure is safe with alu heads with our gas. What CR should I aim for with your choice of cam?
4. What's an economical (but still good) choice of pushrods?

Thanks in advance!