We have a 72 A Body with a 340 ported J Heads 10.3 to 1 compression solid roller cam 252 duration at .050 Holley strip dominator intake 850 Holley mechanical secondaries msd ignition hooker super comp headers 904 trans reverse manual valve body 8 " turbo action converter 391 gear 27 inch street slicks. any guess on what it'll run e.t thanks a bunch

12.20's

my old 70 duster 340 dome top pistons ported j heads comp solid 555 cam torker 340 intake 950hp carb big 17/8 headers 727 5000 turbo action verta 456 27/10.5 dot tire or 28/10.5 slick compr 3 way in the front mp long drag on the back ss springs would run 7.39 @90 in the 1/8 mile with a jacked up 60 of 1.67 best...pull front wheels the set them down and spin....ran 110 race at track mix with 93 on the street..