| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,162 Posts1,056,947 Members48,458 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2002 Posts: 2,767 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,767 | You did not specify, so will assume engine is stock:
The YF is slightly more efficient than the W-1; and since your vehicle is a daily driver, you should not have the exceeding amount of difficulty one can experience with diaphragm pumps on ethanol fuel and collector vehicles which are selectively driven.
If the engine has been modified, the W-1 is easier to modify than the YF.
The W-1 uses a leather accelerator pump, so totally impervious to ethanol-laced fuel.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
|
|
| |
