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Join Date: Aug 2008
Location: Central Alabama
Re: Why does my 509 ping after a long ride?
We need more info to help you. What is your initial timing, total timing at max mechanical advance and rpm? Are you running vacuum advance and how much, ported or manifold? What is your quench measurement? BTW running at 160 is a little too cool for optimum performance, 180 is ideal for a BBC.
TC # 5401
67 Project SS Clone
Owning a Chevelle project is like having a giant-size piggy bank that you keep pouring money into....but you can't get it back out.
Last edited by pnugene; Nov 30th, 19 at 3:48 PM.
Reason: Added text