I am attempting to tune my '71 with the old round top SUs. I performed a rudimentary (at best) carb tuning and then turned to the ignition. While tuning the engine I was able to get the it to idle well at 800 RPM and it had strong acceleration up to about 6K RPM and 90 MPH. (On a track only, of course! ?) But when I look at the ignition timing with a timing light, it shows that it is about 25-degrees BTDC!
The distributor is at its limit of adjustment. Is it possible/recommended that I remove the distributor itself and move it by "one position" to fix the problem and get me back to the right range where I can make timing adjustments just loosening the distributor cap and adjusting?
What is going on and how I can fix it?
Thanks!