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I have a 2000 merc marquis with the 4.6 and it doesnt have the PI heads. What head can I out on it to increase the horse power besides the PI heads? Any help would be appreciated!

-------------------------------------------------------------------------------- WEll I have a 91 mustang here with a stock 2.3l motor dual plug. Its throwing 5 different codes 172--Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - Fuel control 181--Fuel...

MAP or BARO sensor out of range - ">MAP Is this a bad MAP sensor?:shrug:

MAP or BARO sensor out of range - ">MAP Is this a bad MAP sensor?:shrug:

The car runs ok while accelerating but when I start to brake the voltage gauge goes down, untill I hit the gas again. If Im at idle the cars volt. gauge will be down again and the car will start to kinda jump/ lope like it has a cam in it....but once I pull it out of gear and and give it gas or...

Got a 91 mustang here and I just replaced the door. Now when the windows up the radio wont play....when the windows halfway down it will play. whats the problem here....:shrug:

I have a 91 mustang 2.3 and tuesday night, I was driving and I started to slow down and the car died on me. I got the car towed and looked at it and I discovered the belt was loose then changed it and saw all the grooves were ate off. I replaced it. Ive replaced this belt "atleast" 5 times on...

91 mustang dual plug. Question is, is the gear were the distributor should be does it mater where its pointed and the cam gear doesnt have a dot but it has like a spot that seems to be the line up mark you just take the line up mark and use a straight edge and line it with the center of the...

Got a 91 and Im putting a rear end from a turbocoupe in my car the car. Originally it a 4 cylinder but has the v8 brakes on front and will have rear disc in back....Question is, is tomorrow Im going to replace the MC and the power brake booster. What MC should I get that will work with no...

Got a 91 and Im putting a rear end from a turbocoupe in my car the car. Originally it a 4 cylinder but has the v8 brakes on front and will have rear disc in back....Question is, is tomorrow Im going to replace the MC and the power brake booster. What MC should I get to work with no...

I got a 91 mustang and since I bought the car its had a hissing sound when i hit the brakes.(at idle when i put my foot on the brake the rpms would go up) so I just put v8 brakes on it last week and tonight I was driving and I went to hit the brakesa and the pedal got super firm and as i...

I got a 91 mustang and since I bought the car its had a hissing sound when i hit the brakes.(at idle when i put my foot on the brake the rpms would go up) so I just put v8 brakes on it last week and tonight I was driving and I went to hit the brakesa and the pedal got super firm and as i...

Im putting 5.0 brakes on replacing the 4 banger brakes and I got the spindle all the brakes and the strus but the strut wont line up with the holes in the top of the frame(inside the engine bay) any ideas what the deal is?

Working on a 91 mustang and im looking to do a fuel pump kill switch any ideas how to go about this? Any info will help thanks.

Working on a 91 mustang and im looking to do a fuel pump kill switch any ideas how to go about this? Any info will help thanks.

I have a 91 w/ 2.3l suspension and the front wheel rubs on the strut....can someone help me out here

anyone help me out here?

Ive heard that throwin Tc springs in the rear of a fox'll get a good looking stance would it make a diff if its a convert? i want the back up a little...or should i just cut a little off the fron springs? Any ideas? Im just looking for something cheap and easy...I have TC springs :shrug:

i got an 8.8 rear disc diff from a turbo coupe what all is needed to covert it im sorry id try to find some stuff in other forums but im having trouble find a good clear one. let me know where to look thanks alot

i have a chance to buy an 88 turbo coupe for $500 and it has 168k it wouldnt start up today but i dont really car im going to rebuild the entire thing. he says the rear has 373 locker?(stock) i thought the came with 355 locker posi? so i can pay 5 for the whole car or 250 for the motor plus...