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I won't argue to the death on the heads, but I thought that some early novas had the 163 intake with the open element air cleaner. Does your blk nova built a day after this car have a dual snorkle air cleaner? Does it also have the arm/rod throttle? My dual snorkle late build had the cable. I thought other than the cable being a saftey in respect to a broken motor mt holding the arm open, that there would be a clearance issue with the arm/rod and the dual snorkle and the intake height.
It was my thought that the cable, and the D/S air cleaner came at mid year with the other changes. Some of those spurred by the introduction of the new camaro model.
So can you tell me when the drop dead change date is for the cable, and the D/S air cleaner. As it's possible that this D/S air cleaner is not correct for this early built car.
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Ken, our car has the original open element and throttle arm linkage....the change over for the throttle arm to cable took place around the end of Dec/69...our black car is 12C and it has this and our red 70 is 12C and it has the cable, so I would say santa brought GM the cables just in time for the holidays
...2 of our other L78 Jan/Feb dates had original open elemnet air cleaners. As for the 163 intake....it was not installed on these 70 engines...I have talked to several people with early cars (sept/oct) and they have the low rise 569...I think the dual snorkle was phased in during the spring of 1970. Another place to check on the intake would be 70 L78 Chevelles since they were all early production...I have never seen a pic of a 163 on a 70 Chevelle....perhaps Rick can confirm this.
wilma