how to get 340 into 12,s

compression is 10.2 to 1 and rear end is 3.91 8/ 3/4 his wheels are widened ralleyes 15 inch,with mickey thompson street ets,about 9 inch,s wide i think,i think he,s scared to rev it,the motor was well built,everything measured and puttogether right,does the mile an hour suggest a better time from this car you think