Originally Posted by CamaroRacing68x
I have a 383 Stroker And I Want To Put A Holley 3310 Model 4 Bbl Carb on it. Is there any difference in those different model numbers or is there a base 3310 model that I'm having a hard time finding?
If they are specifying a "3310", then that encompasses ALL 3310, including the 3310-1 and the 3310 (no dash) used on Chevy production engines.
The main difference between the aftermarket 3310 is the -1 has a secondary metering block (4150) instead of a plate (4160), and the primary boosters are downleg on the -1. If you have one, use it.
BTW, the 780 3310-1 have downleg boosters, the 750 cfm 3310's have straight boosters.
Edit- You can also add a secondary metering block to a carb having a plate. This is a common mod and many 750 3310's will have a block instead of a plate, so don't go by just the block being there as meaning it's a -1 carb.