If you're experiencing problems like ticking noises, low compression, or poor performance that *might* be related to valve adjustment, it's almost certainly not a matter of adjusting tappets/lifters directly. Instead, the likely causes are:
* Low oil pressure: This is a common cause of lifter noise. Check your oil pressure first.
* Worn lifters: Hydraulic lifters can wear out and fail to pump up properly. Replacing them is the solution.
* Worn camshaft lobes: If the camshaft lobes are worn, it will affect the lifter operation.
* Incorrectly seated lifters: Sometimes a lifter might be stuck or not seating correctly.
* Other engine issues: The noise could be coming from something else entirely, such as a timing chain, belt tensioner, or other engine components.
In short: You don't adjust tappets on a 1995 350 Chevy with hydraulic lifters. If you're hearing ticking or have performance issues, diagnose the problem as outlined above. This likely involves checking oil pressure, and potentially a professional mechanic to properly diagnose and repair the engine.
If you have a very unusual 1995 350 Chevy with solid lifters (highly unlikely), you'll need a specific workshop manual for that engine. The procedure is complex and involves specialized tools and knowledge, and shouldn't be attempted by someone unfamiliar with engine mechanics.