Budget racers quickest stock piston and head motors

Once built a 360 that was 040" over but used std bore 340 pistons out of a 72 340 with 8.5 :1 compression. Came out around 12.8:1 with the 360 using x casting 340 heads. Ran 11.80 in 3000lb dart with 4speed and 4.56 gear. Running race gas on the street got REAL EXPENSIVE with the hi compression. Sold it to a buddy for his stock car