Didn't you get rid of 3v car a few yrs ago and pickup a termi, I seem to recall. Now back to a 3v?
Those are good times but not out of the ordinary with good da. I was running the same with stock exhaust, then added full exhaust cause the kids said it was to quite,lol. That got me another 3-4 mph and 2 tenths on the average with same da. 1pc, udp's, eh2o maybe got me another tenth. They simply arnt what they are cut out to be. Gears, tune, cai, cmdp's, and full exhaust are the most effective bang for buck. Heads - cams are not a simple 1-2 hr "bolton". and a complete mod to cfm flow. I would say your in the top 10% mod per mod....solid A.
If I didn't like driving the car on hwy and road coarse 4:30 gears would be installed...a good ~2 tenths almost. A guy down here at JMS was running a tune, cai, o/r x and 4:30s and running 12.4's at ease. with 4:10's 12.6.
My most proud pass down the track was a 12.42 @110mph witha +1400 da in May. That was a few months after running 12.2's after full exhaust and just before gas stations started the ethenol mix.
You get some -1000' or more da these cars absoluty come alive on the big end. You get that and a 12.4 is yours fer sure.