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#21
02-02-2008, 02:05 PM
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96's for sure. Nitrous motors and blown engines are usually limited very quickly by exhaust. We got well over 260 cfm out of our exhaust of the round port heads and had to back them off to 70% of the intakes. The D-ports are much thinner and the center exhaust ports are worse than the outers. Welding was required to get us up to about 220. The 96's have much more casting material to make the CSA bigger in all areas.
Lynn |
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#22
02-02-2008, 11:32 PM
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Last time I talked to Dave(pre CNC iron head but 280 cfm hand ported iron heads) for a race motor he would pick aluminum heads hands down. As much flow out of the box and more to pick up from porting.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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