To be honest, the valve adjustment crossed my mind but I haven't done it yet. I really thought it was the timing. Thought I'd hear valve clatter all the time if they needed adjusted.
I can't remember adjusting the valves after installing the 350 in the 70 C-10.
Also, this was a motor swap not a motor I rebuilt.
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1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch
1995 T10 Blazer 4.3L 4x4 (Son's)
2004 GMC Envoy 4.2L 2WD
2005 GMC Sierra Crew Cab Z71 4x4 5.3L
240 Fun Finder Travel Trailer
Harvest, AL 35749
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