383 power upgrade help

Check the in a called height on the springs and then remove and test them at inst height and then desired cam lift, as well as coil bind clearance.
The pistons look like 9.2-1 silvolites or something else, down in the hole .020 or so...? Either way, they'll work.
Flat tappet Cam in the 225-235 @.050 ..277-282adv
Something narrow to build cylinder psi is what I'd go with.
If the bores are good.. leave the bottom end alone. If they're re rung revisited ... them bore n hone, new pistons, start over.
Definitely up the exhaust valve, mild porting maybe, good valve job for sure.
De burr the chamber edges.
Flip the motor.and with each positioned at tdc.. scrape the crap off.
Just a thought
My thoughts on the cylinder bores were the fact that it's already 30 over it might just need honed an new rings. I did not notice a ridge in the picture he posted of the Pistons in the bores. So why spend
the money on unneeded machine work?

He needs somebody to check the block over before putting a bunch of money into it.

I'm thinking the kid is not a millionaire an might be counting his pennies or nickels and dimes. I may be wrong. Are you a rich kid?

I'm thinking without buying cylinder heads and doing $1,000 of machine work he's still going to have $1500- $2,000 in this motor building it.

As for building it like a 383 HP that's a nice idea. But realize this is an earlier motor with closed chamber heads not a 68 or newer with the Pistons popping up out of the cylinders and the open chamber heads.
The interesting fact about the torque on those 383s rrr keeps mentioning is that the earlier 383s had even more torque than 425 some of them I think went to about 460.