There are no adjustments on a stock Pontiac valvetrain. You simply torque them to 20 ft lbs. Pontiac did not use locking rocker arm nuts. Any attempt to adjust them like you do a Chevy will result in the rocker nuts backing off.
yes
find zerro lash than tighten one quarter turn each three quarter turns
http://www.centuryperformance.com/valveadjustment.asp
on a 350 engine to adjust valves tighten them down with engine running then back them off until it smooths out probably about a quarter of a turn
The gap is .035"
If it is a Pontiac 350, any hei distributor out of any size Pontiac motor up to 1979 will work.
probably need to adjust your valves
With the engine at TOP DEAD CENTER (TDC) Adjust the exhuast valve to .007 and the intake to .005.
1970 Pontiac catalina coupe and sedan had a standard 350 255 horsepower the 400 was optional rated at 265 horsepower
hyd.350 turbo tranny and a 1979 buick regal has these
The 2010 Lexus IS-350 has 24 valves.
The 2011 Lexus IS-350 has 24 valves.