Originally Posted by turtlejoe
Was the plastic white? Did it have a small diameter hole through the center of it? I have one too, and my presumption is that it's there to meter the rate at which vapor can reach the canister - in all likelihood, it's an orifice. I do believe it was an original "feature" on my '78 - can't speak to what years had or didn't have it.
This is a great thread, and thanks to Scotty1998 and all y'all for adding to our collective wisdom.
I believe it was a white plastic piece just as you described. It definitely made a difference after I removed it. Its possible the replacement hose I put on was a smaller diameter and the "orifice" restricted it even further.
1990 GW: Borla Turbo XL muffler, MSD 6A, Blaster Coil
Rebuilt 360 with RV cam. Edelbrock 1406 and Performer Intake
TH727, NP229, 3.73's with 31' BFG's. BJ's 4" lift with Rancho 9000's
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