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Hello,

I am new to this forum and have a few questions. I have a stock 1986 GT mustang 5.0 with 43,000 original miles and want to do some upgrades. I know I have to change over to the mass air system, I was thinking about getting the Trick Flow Top End kit for it then someone told me that that was not going to be a good idea. Then I thought about a procharger but don't really know about that either. I also was wondering about the heads, If I keep them are they worth porting. Is it true that the 86's are bad for doing upgrades to because of the flat topped pistons? I also was wondering which gears should I change to 3.55, 3.73, or 4.10? Any help would be appreciated. Thank You.
 

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buy a new block, get a rebuild or run a pro charger. you cannot do anything to that engine and porting THOSE heads would be a waste of time.
 
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