OHV valve gap is 0.006" There is a YouTube video on the adjustment procedure and I will put the link below.
For the intake valve, the gap is 0.08 ± 0.02 mm. For the exhaust valve, the gap is 0.11 ± 0.02 mm.
.o17 is about right
the dwell is 29 to 31 degrees and the gap is .019.
It is the gap between the rocker arm and the push rod or valve in the head of the engine. How much it is varies with each model of engine.
If it's an 8 valve engine and not the 16 valve: Bosch Spark plugs have a gap of 0.8mm NGK spark plugs need a gap of 0.9mm 16 Valve engines have a 0.9mm gap on each type of spark plug
.012 int.-.012ex.
It is the gap between the rocker arm and the push rod or valve in the head of the engine. How much it is varies with each model of engine.
what is point setting for chev 350 v8 engine Use dwell meter to set the gap to 30 degrees dwell.
The correct valve clearence (lash, gap) for this engine is: intake & exhaust valve: 0.004" - 0.008" (0.1-0.2mm) These should be adjusted on a cold engine with the piston 1/4" (6mm) past top dead center.
30 degrees dwell
That space is called "valve lash". It is a predefined gap set on a cold engine when the rocker arm is on the base circle of the cam.