lookin 4 help for my combo

K id like to run 12.9s or faster without spend an arm and a leg and with mustangs theres so many different combo choices so heres what I think I wanna do, any help would b appreciated.

-125-150 wet shot (nos, nx, any others?)
-e303cam with 1.6 RR anything else like new pushrods? what length?
-Trick Flow Street Heat Intake
-C&L 76mm MAF with their 76mm tube
-3:73 gears going in shortly with trak-lok rebuild
-190 LPH fuel pump prolly walbro?
-King Cobra HD clutch? how come the frpp ones dont come with alignment tool?
-tearing the motor out and changing the rear main seal its been leaking for a while and doing all new gaskets & new oil pump aswell
-suspension wise not sure maybe aftrmrkt upper/lower control arms?
-70/30 shocks upfront and 50/50 in the back and maybe drag springs in the back with an airbag
-dont really wanna spend 1k+ on some nice alum cylinder heads, mite spend 500 bux or so on some used gt40s but how much hp should I expect to gain over stock ones with my combo? and how much will it hurt me if i leave my heads stock?
-For exhaust Im doing bbk shorty headers to h or x pipe to 40 series flows and side exit exhaust
-Tires, gonna b running slicks for sure on 15" turbine wheels

Am I 12.9s or faster? and will my motor handle a 150 shot a few times and have nothing to worry about? Anything else I should add?

Thanks!:canada:
 
If your staying small, the cheapest bang for your buck would be to go with lower gears. 4:10s or 4:30s would work pretty decent. GT40 irons can give good gains with some port work. With traction, gears, NOS, and a good launch should easily be in 12's.
 
The combo listed above should be good for mid 11's on the bottle. If your just looking for 12.9's, I would go with a cobra intake, 1.7 rollers, stock cam and heads, 4.10's and a good suspension and driving. There is no replacement for a good driver! Or you could just spray a 100 shot on the stock motor with 3.73's and that should be good for mid to bottom 12's. GOOD LUCK