help me decide

[85gt5.0]

im looking to get the most out of my car, but i need help on deciding on what i should do with it

1985 Ford Mustang GT, 302 HO, 5 spd

what type of heads should i go with?
would my E5TE heads work, since their milled .030 over?
might install a B303 cam, since a friend has 1 i can have
should i go w/ 3.73's or 4.10 gears? so it has the 7.5" axle
ill need a dual hump crossmember, but plan on going w/ BBK LT headers, off-road h-pipe, and different exhaust

what else should i do?

 

[BlownFiveLiter]

Your expectation of the car really is the determining factor for what type of heads you should get, aside from the cost factor of course. You're probably seeing a very moderate gain with the milled heads, but from a performance standpoint, not enough to really feel a difference. Adding the "B" cam will net you more power; I just can't really offer a guess as to how much. Do the '85s have valve reliefs in their pistons? I don't remember, but I know the '86 didn't, so that would be a very big determining factor as to whether or not the cam will work well with your heads. Being milled, the valves are already closer to the pistons, and with the increased lift, you'll be looking at an increased possibility of piston to valve clearance issues. If funds are limited, check out some iron GT40, or GT40P heads for a good bang for the buck head. There's been plenty of guys running 12s on motor, using both heads, and they'll really be able to take more advantage of the B303 cam.
Now for the rear end, I'd really recommend picking up an 8.8 rear. Yours could last under the mods you have in store, or it could be the weakest link in your drivetrain. I'm not really the best with choosing gears based on combinations, so I'll let someone else chime in here at this point. Good luck!

 

[85gt5.0]

o i definately plan on swapping the rear end to a 8.8, since ill be doing a 408 stroker, and TK0 500/600

 

[IntenseBlue]

Is it gonna be a daily driver, street/strip, track only?

 

[85gt5.0]

Is it gonna be a daily driver, street/strip, track only?

street/strip...wanting to get roughly 400 rwhp & tq out of it maybe w/ some nitrous

 

[IntenseBlue]

I'd get some AFR 185s, 4.10s, and a custom cam. E5s arent worth ****. You'll also need an intake. TFS Track Heat, Edelbrock RPM or RPM II, or Holley Systemax come to mind. I'd probably do the RPM II.

 

[85gt5.0]

I'd get some AFR 185s, 4.10s, and a custom cam. E5s arent worth ****. You'll also need an intake. TFS Track Heat, Edelbrock RPM or RPM II, or Holley Systemax come to mind. I'd probably do the RPM II.

what about the edelbrock air-gap?

 

[IntenseBlue]

Crap. Forgot you were carbureted. Yeah, I'd get an Edelbrock RPM Air Gap.

 

[85gt5.0]

would a holley 600 cfm work?

 

[IntenseBlue]

Yes.