Unported head quickness?

I think this will be a great addition to this thread.

11-1 340 .030. The cam is a solid bullet regrind from a hyd .508 mopar. duration is 252 I / 253 E @ .050, 281 I / 284 E with .516 lift.

Unported J heads with stock 1.88/1.60 tulip valves. Home grown 1 angle valve job. Stock retainers and keepers. 130 lbs seat pressure 290 open. Still has the 273 rockers on it. Victor 340 intake, working alternator and fan.

The car is my 1970 dodge dart weighing 3300lbs with me in it. 5.13 gear and a 18 spine a body 4-speed and a 28 x 9 inch tire. Going to put the 4.86 in it next. It still has 1 7/8 hooker headers on it (too big). Also adding 2 1/2 exhaust soon.

7.68 @ 89.11