I feel like a lot of the stuff here is good, and a lot of it is probably just confusing you.
To answer your questions:
Your block will split at the power levels you are looking for. No if's, and's or but's about it. To counter this problem, you could build a 351 as mentioned above, or get a Dart block to stick with the 302 platform. Both of these have stroker plans if interested. Your heads would work, albeit the 351 might choke up a little because it really likes to suck in some air.
In theory, the kit you purchase could get you there, you would just be picking pieces of the motor off the ground before you get there.
That said, you've been given a number of excellent options here.
Coyote swap - great power, great reliability, great driveability. The cons - requires a bit more back end work to make the two mesh well together (because you are on a pushrod platform) and maybe the price could be considered a con but it's pretty reasonable.
Vortech or other centri blower - easy to find, easy to install, and easy to make 400 horse safely, reliably, all day long. I'm not sure what sort of times you are looking to cut, but you would be surprised what a properly setup 400 horse Mustang can run. Hell, I've witnessed a number of sub 400 foxes get into the 10's, and they weigh just a little less.
Roots blowers - hard to find for the pushrod motors, and sometimes have heat issues following them around. My personal favorite type of blower, but for these motors they tend to need meth. We have some guys here running the 5.0 kenne bell though, OnyxCobra might be able to tell you more on that.
Some things you may want more for the car before you start under the hood:
Subframe connectors, good lower control arms, shocks and struts, ball joint, tie rods, lowering springs, better brakes and better tires.
Not trying to cut your ideas down but are you used to driving anything properly set up with more than 700 horsepower? Some people are, if not, it's best not to just throw yourself into a potential death trap.
Also, thank you for your service.
And as noted previously, don't blow all your in service money on this thing. So many guys do. When you come out, you could have a pretty nice down payment on a house, or at least have some in the bank on a CD or something collecting for you while you are in the service. Most of my buddies say if they had to do it differently, that would be their choice, save a good chunk.
To answer your questions:
Your block will split at the power levels you are looking for. No if's, and's or but's about it. To counter this problem, you could build a 351 as mentioned above, or get a Dart block to stick with the 302 platform. Both of these have stroker plans if interested. Your heads would work, albeit the 351 might choke up a little because it really likes to suck in some air.
In theory, the kit you purchase could get you there, you would just be picking pieces of the motor off the ground before you get there.
That said, you've been given a number of excellent options here.
Coyote swap - great power, great reliability, great driveability. The cons - requires a bit more back end work to make the two mesh well together (because you are on a pushrod platform) and maybe the price could be considered a con but it's pretty reasonable.
Vortech or other centri blower - easy to find, easy to install, and easy to make 400 horse safely, reliably, all day long. I'm not sure what sort of times you are looking to cut, but you would be surprised what a properly setup 400 horse Mustang can run. Hell, I've witnessed a number of sub 400 foxes get into the 10's, and they weigh just a little less.
Roots blowers - hard to find for the pushrod motors, and sometimes have heat issues following them around. My personal favorite type of blower, but for these motors they tend to need meth. We have some guys here running the 5.0 kenne bell though, OnyxCobra might be able to tell you more on that.
Some things you may want more for the car before you start under the hood:
Subframe connectors, good lower control arms, shocks and struts, ball joint, tie rods, lowering springs, better brakes and better tires.
Not trying to cut your ideas down but are you used to driving anything properly set up with more than 700 horsepower? Some people are, if not, it's best not to just throw yourself into a potential death trap.
Also, thank you for your service.
And as noted previously, don't blow all your in service money on this thing. So many guys do. When you come out, you could have a pretty nice down payment on a house, or at least have some in the bank on a CD or something collecting for you while you are in the service. Most of my buddies say if they had to do it differently, that would be their choice, save a good chunk.