22r,slight pinging when driving off...

[Rix]

Originally Posted By: SOHCman
Not really a 22R specific thing, but on some engines with EGR systems, the engine will ping between the 1300-1400 rpm area when accelerating if the EGR system is clogged, deleted, or otherwise not working.

The engine may be running lean/hot through this RPM range for emissions and uses the EGR system to cool the combustion chamber reducing NOX emissions.

If the EGR is deleted, you may just have to tune fatter in this range, or retard timing?

Absolutely true. cruise and light accell.

 

[daves66nova]

even with a totally non-stock carb? A Holley/Weber one from a Pinto

 

[SOHCman]

Originally Posted By: daves66nova
even with a totally non-stock carb? A Holley/Weber one from a Pinto


Depending on how it is tuned, yes. Just because it isn't the stock carb doesn't mean its tuned correctly for your engine. Have you taken it to be tuned at a dyno shop? That might actually be a good option if you cant/don't want to do it yourself. If you already have had it tuned, they obviously didn't tune it right or it wouldn't be doing that.

Have you altered the intake/exhaust emissions stuff since you bought it? That change might have thrown off the jetting?