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86 Carrera Coupe 3.2 non turbo

Engine

Vehicle Information: Model: 911; Year: 1986; Body Type: Coupe; Engine (type, size, modifications): 3.2,autothority mass air flow and corresponding chip, throttle body resized, ssi heat exchangers and monty 2in 2out stainless muffler; Total Mileage: 105,000;

would like to substantially increase horsepower of current 3.2. if i stayed with current chipped DME what will i be able to look for in hp increase with following areas of upgrade? Port and polish heads,dual spark plugs, 964 cams, oversize cylinders and pistons, cr to 10:30 to 1,Probably will use good rods and and upgraded hardware throughout. cost is not an object on this project but i don't want to go past the point of reality with an underfuel overheated engine. your thoughts on this wou be appreciated

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