Originally Posted by Rich'sToys
[quote=Phak1]

That is why running a non vented cap will cause a vacuum to form in the tank while driving and eventually stall out the engine, due to lack of fuel.


Or flatten your tank in & bend sending unit / pick up tube.

BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022