Re: Anyone have an original 69 L/78 with THM400 ?
The '69 4346 carb is the same for manual/auto applications. '70 could be different; there are differences between manual/auto carbs for the Z28.
The 1969 Camaro assembly manual shows the bracket/solenoid setup for L78 on page A10 of the M40 section.
Most ZL1s were built with 4346 carbs, possibly because the ducted hood air cleaner vent tube interferes with the rear pump on the 4296. The only known photo of an automatic ZL1 Camaro shows no solenoid.
The first two ZL1 Camaros were automatic, delivered Dec 31, 1968. The remainder of Gibbs 50 were built and delivered during March 1969. 22 0f the 69 were automatic.
We swapped out a 4346 for a 4296 on an automatic ZL1 and no modifications were required. It is a direct bolt-on.
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12-09-2005, 10:26 PM
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