New Cam/Lifters/Chain, Fresh Rings. Rebuilt '65 273, Cam Break-In done...
Started Driving it over the weekend. Haven't Revved it passed 3000 rpm yet.
How long should I be nice to it before I can Floor-It and Shift at 5000?
I had my '65 273 professionally rebuilt at an engine shop, and they told me 1,000 miles before it's fully "broken in." I am sure you know this, but you also need to use something like Valvoline VR1 racing oil if you plan to run readily available premium unleaded. Love our '65!
