Update on Vapor Lock and Changes made with Gas Cap/Sig difference in the 2 caps

[msmaron]

Made some small changes today, The first was i noticed a leak in the side bowl of the carb, not that has anything to do with Vapor lock but it needed to be replaced, also took off my gas cap and WOW...NO VENT at all, That was a problem and i dont know why i did not look more closely yesterday. Filled up with better gas and drove. A difference already, Tomorrow back to driving to work for another test and i am going to insulate the gas line with what Tom is sending me. But look at the difference in the gas caps. The REPO which has the vent is larger and more sturdy. Wondering how exactly the VENT helps the vapor lock to prevent it??