1968 dodge 340 motor problems

[mj30wilson]

I need to get a air intake with a EGR valve system does anyone make one for a 340 motor? I am running a carter 4 barrel and all is original except purple cam shaft. Running around 10 to 1 compression and it spark knocks. We suspect bad gas but have tried 100 octane low lead from the local air strip and it still spark knocks. I have worked with the carb jets and metering rods to get the car to her it does not knock as badly but if I have to get into the trottle it knocks.

Any help with locating the proper air intake would be appreciated.

Got an electronic distributer running and through another chat room I heard about a spring kit to retard timing at 2000 rpm which is where ours starts to spark knock. Anyone have this problem or tried this spring kit?

 

[Meep-Meep]

You should make sure the total timing with the vac advance disconnected is at 36-38 deg at around 2300 RPM. With the vac advance hooked up you should get maybe another 8-10 degrees at part throttle (where the ported vac signal is high). It's possible you are getting too much vac advance. 10:1 compression is not helping the situaton either.

 

[pgkeating]

you'll have better luck.....

over on "For A Bodies Only".

That's where the small blocks are in greater numbers.

Just my .02