340 Engine Shake

If you are racing I'd say you want to bush the lifter bores and do some trick oiling mods. For thr street no work is required as long as your lifter bores are within spec. I have run both hydraulic and solid rollers in stock block LA SBM engines on the street with no issues.
Pay attention to
Placement of the oiling groove and EDM oiling
Length and weight
Roller diameter and roller axle retention
Quality, quality and of course quality matters
OK lifters are $cheap, great lifters are not $cheap.

10-4. I don't want this to be a race car. I want a fun dependable street car that I can take anywhere.

The current motor is:
68 340 .040 over
Keith Black Hypers .018 out the hole
Edelbrock Aluminum heads 65cc for the hipo 340
Stock rods
Steel crank
Air gap
Doug's headers
Fitech EFI
4 speed with 18 spline OD gearset
4.10 rear gears