BBC Air cleaner base

**SuperNovaSS** · #1 11-20-2023, 06:47 AM

The second design l88 in 1969 went to a 850 double pumper. The list number was 4296. It and the list 4295 carb used on the 1969 z28 crossram were the first double pumpers made by Holley. It was a turning point in Holley performance.

Jason

**John Brown** · #2 11-20-2023, 02:19 PM

Quote:

Originally Posted by big gear head

I didn't know that the L88 had a DP. I thought it was vacuum.

The 3418 was a vacuum secondary carb, then in 69 they changed to a 4296, which was a double pumper. Just for the record, I have never run across a plain 3418, only 3418-1's. Strange.

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