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Original Message
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| RE:Wait! One more thing |
| By McQ - 11/21/2004 2:01:11 AM; IP 65.176.112.118 |
It just hit me, more important than the under hood clearance issues, what heads are you running on your '67? If they're C7AE, short intake ports, there's a serious mismatch between those and the tri power port.
The early intakes, '58-'65, have the tall exit port to head port. Look at the intake ports of your heads....short? Not a good match.
From '66 on, intakes had the small exit ports. This provided more power/torque in the lower rpm ranges which is where most FE's were cammed to run, even the GT/CJ were limited to 5,500 rpm. The '67 Shelby GT500 intake, C7ZX dual four even has the small exit ports as does the CJ cast iron. The GT500 ran the same cam as the GT/CJ/PI. As a matter of fact, the GT500 428 was a '67 hydraulic cammed Police engine with the special C7ZX dual 4 induction system.
To really see performance benefits from the tri power you need to build a set of C6AE-R's. They're reasonably available and reasonably priced unlike the CJ, C8OE-N, which is neither. If the C6AE-R's aren't already drilled for your GT exhaust manifolds, the can be.
Sorry to forget about this important issue. |
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