Will your fan, shroud combo suck a piece of cardboard to the front of the radiator and hold it there while running? If not you need more airflow. And guessing at the timing is a recipe for disaster when breaking it in, get a light on it instantly after fire up and pull 40 degrees in at 3000rpm...
There are a few different styles of retaining clips in hydraulic lifters my pic was just an example. What you have sure looks like a hydraulic to me but the pics are not clear enough to tell for sure. Don’t assume, be 100% sure of what you have because how you adjust them will matter. And I...
Hydraulic lifters will have a retaining clip in the top of em. Pretty easy to identify. Solids will not. You can peek down with a flashlight and see it through a pushrod hole even with the intake on. Another way to tell is take a pushrod and seat it in the lifter and push down on it. You’ll get...
273 banana groove shafts.
It’s pretty easy to duplicate the groove with a dremel and a thin cutting disk. Might be easier if you don’t have the tools to buy a set of shafts. They come up for sale quite often.
Sounds exactly like you’re blowing through the converter. What fluid was in the trans? You could try hygard and see if it tightens up the converter if you just had atf in it.
Those are 273 adjustable iron rockers. That’s a good rocker and about perfect for your application. There are two oil holes in them and you want to run a wire through each one to make sure they’re clear. Then do all the holes in the shaft.