70" 340 vs 72" 340 specs please

hi, I looked at national records for 340 cars. E/SA record, 10.58 @ 123.76 mph, 1973 duster with low comp 340, F/SA, 10.73 , 1969 340 b 'cuda, with high comp 340. just food for thought. the 72 -73 340's can run fast.

Yup, The stock class guys will pick the better carb over better compression almost every time.

I tried finding some PureStock #s but no luck.

If you read the old DC/Mopar Perf manual they tell you the first upgrade to make on your 68-70 340 is to use a 71-73 intake/carb.