Does nayone have the info on the dates of these 4296 holleys that came on the factory ZL1s and l88 corvettes . I know a 911 sold for 10K a few years back. Havent seen many prior to 942.
I saw one on eBay with an August 68 date.
I would assume that anything prior to February 1969 was intended for an L88.
Is the question here regarding establishing the correct date/timelines for a 4296 to be "ON" a ZL1 delivered car?
Are you trying to establish a price to any 4296?
If your question is regarding correct delivered timelines, ie: open the hood of a brand new 69 ZL1 and see that 4296 there in person on that motor,
then I would invite those in the know to offer that answer.
If you are trying to establish the price of one of these with a 1968/1969 date, then it would be up to the need of someone who has a real car,
whether it be an L88 or a ZL1, needing a 4296 with the date code for their car missing the original carb.
Clone cars, ones that are not real, made to look correct, define a value that only fits that need; and one established by that owner.