Upgrade Help

Hi All

Well since I am from Canada and nobody knows anything about Mustang's around here I figured that I would come to you guys for some help. What I have is a 89 Mustang LX 5.0L I replaced the motor about a year ago and of course they screwed up and put the wrong cam in it so the next thing that I am doing is a 351 Cam.

Anyways here is the list that I have done so far:

Under Drive Pulley's
Electric Ford Racing Fan
MSD Box, Coil, Cap, Rotor, and Wires
Air Intake With K&N Filter
Summit Racing Water Pump
Jet Performance Racing Chip
New Headers and Flowmaster 40 series Exhaust
Center Force Clutch
Traction Bars
Front Brake Lock
Front and Rear Sway Bars
New Gas Shocks
New Braking System
New Paint Job

Now I have decided when I do my cam I going to change the Intake and Manifold at the sametime, as well I am going to change the Mass Air Sensor and Throttlebody ( Its worn out anyway). So my question is what would you guys suggest for the best power increase for a intake, I would like to keep my stock hood so I want nothing really high. I have looked at Edelbrock, BBK, Trickflow, and the Cobra Intake but I have no idea which one to get. I also worried about the injectors will I have to change them or will I still notice a power increase without doing them? Will my stock computer be ok? Any suggestions that you may have I would like to listen to them, this is going to be an expensive upgrade and I want to do it right. Thanks for taking the time to read this and hats off to you guys for making this a great forum.

It will depend on your cam choice, plus, any headwork?  

No the heads are still stock I am trying to figure out if I should change the cam and if so which one nobody can seem to tell me which one would be a good one to start with.  

With stock heads try The "E" cam from ford racing. The stock injectors will be fine. Also use a 65mm throttle body and spacer and matching mass air meter. Bigger in not better in this case. It will actually  hurt you.  By the way these items don't wear so you can try to sell them on ebay. Take the chip out and sell it. Chips don't do nothing with these cars that a bump in timing and a boost in fuel pressure can't do. These computers are really only "code readers"  the chips don't do anything unless your running alot of boost or nitrous. Look into the Performance Products Upper and Lower Intake. This is a knock off of the Edelbrock Intake, and will save you $200-$300 dollors. You can bump your timing to 16' btdc and make your fuel pressure 39lb with the vacuum line off the fuel pressure regulator but plug the line with something so you do have a leak while your adjusting it than put it back on when your done. You'll need a adjustable fuel regulator if you don't have one. Another tip, since you have the intake off and will be changing the cam,  change the rockers to a 1.6 ratio roller rockers. Good Luck

Done this one, '96 Explorer upper and lower intake (same as Cobra and saved *** 65mm Explorer throttle body, modified with Mustang throttle control arm, http://fordfuelinjection.com/files/Explorer_throttlebody_fix.pdf 

73mm C&L MAF, stock injectors will support 300-340 HP so you can just swap over stock injectors.  Be Careful when you swap and don't break a pintel cap off one of the injectors.  I broke one and had to replace one off a dead injector from a local racer who was generous.  Completed with offroad pipe and Flowmasters.  You will get surging without this mod.   Gas mileage goes up with this mod.  Mine still has stock cam.  Only do cam if doing heads since the 2 together will reap benefits.  But if you have to do cam, some people do, you can replace it without removing the stock intake to get the lifters out.

www.andersonfordmotorsport.com has a cool tool to remove the cam for about 70 or so.  Basically its threaded rods with high power magnets on the ends and nuts with washers on the other end.  You drop the magnet end down into the motor and pull up the lifter and get it off the cam so you can pull it out.  The nuts and washers just hold the lifter up until the job is done.