[1972BlueC20]

UPDATE :

So I replaced all the fuel line from the tank to the pump and from the pump to carb.....no improvement.

I checked the sending unit even though it was fairly new....the sock isn't collapsed.

Bypassed my fuel pressure regulator just to rule that out.....no improvement.

So there are only a few more possibilities left in my mind :

1) timing issue (i've tried 12-16 BTDC, haven't tried less than 12 yet)
2) vacuum leak that I just can't seem to find.
3) fuel pump isn't providing the correct volume, pressure is good @ 6 PSI.
4) actual carb issue


I just ordered a .035 squirter (tube style), and a hollow high flow squirter screw along with an accelerator pump cam assortment pack.

we shall see after I try the bigger squirter ect.


Anyone have any other suggestions?