1/4 mile times

Well so far... lets see.
Timing/tuning carb in.
Suspension, weight transfer,
Gears...undecided on somewere between 4.11-4.56.
Converter 3500 or so.
Overall The car for me is a street strip deal.
I want to hit high 11's like 11.70-12.30 or so anything around there would be great. I dont want to go so far that i get into the snowball effect were i have to buy more and more and more if possible.. but i know how it goes.
And I am Planning in the future to go maby a little bigger around 530-545 solid cam and new pistons this winter as well so any parts like gears and converter would need to work ok with the plan of a little larger cam.
So what do you guys think