Traction Control Needed...

Stuff in the trunk will slow you down, even if it's just 200 pounds of feathers.
Forget ET; Concentrate on the MPH.
It, together with your weight, tells you how much HP you're making. Getting the ET to match for the trapspeed can cost a zillion dollars. Once you have a consistent trap speed, you can back calculate how much more power you need, or how much less weight you need to be at, to achieve your ET goal.
Your 60ft is about same as mine with 400hp, so we are both leaving a solid 1/2 second or more on the line.That's the way it is with a street suspension, and it's not just tires cuz I ran 325/50-15 BFG DRs to get that chitty 60ft. Like I said it can cost a zillion dollars to get the ET to match the trap. In any case I think it will be cheaper to add 20 horsepower, and get the ET at the top end of the track. A lil more cam and a lil more finesse and you're there. Or maybe just a decent amount of compression.
I attacked it from all sides; compression, cam,headflow,and finesse; and was rewarded with 93 in the 1/8th, still with that chitty mid-2.2x 60ft,lol. I don't care about the ET now, cuz Daymn! that car goes.
lol.
I gotta tell you tho, in 1970 I was a young kid with a 340 powered 1970 DartSwinger, and I drove the nuts off that car for 5 years, and it was F-A-S-T. 98mph in the qtr fast,lol. You're only 1 mph off that benchmark. But My Dart was at 14.4 and change, and it spun those E70-14 belted pos tires most of that qtr,lol. But guess what; so did everybody else on those tires, so we were all on a level playing field,lol.
Fast is relative. For me; in 1970, 98 in the qtr was fast. Today 93 in the 1/8th is fast, tomorrow, who knows. I could be dead tomorrow.