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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#75127 03/20/2007 9:15 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | If the 235 is still running stock compression I would find the TDC with a pencil using Apache's method (the pencil won't scratch the piston) and then run it about 5 degrees advanced from that, and play with it a bit. It's pretty hard to get a stock 235 to knock but it will run better on certain timing settings.
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