The car will not start when the weather is hot

I have the car listed above Ex Coup. So, the problem I'm having is my car will start in the mornings but at the end of the day after work, especially when it's hot outside, she won't crank. I bought her a new battery, new terminal clamps/cables, got the alternator checked, has a new radiator and hoses, I've also been listening pretty closely to my starter, and she clicks just fine. When I do manage to get her to start I get her just a little bit of gas to make sure the problem isn't vapor lock. I haven't tried getting a new key, which might be the problem but I'm unsure. I don't think it could be the fuel relay or pump but unsure about that as well. I just want a second opinion on what I should check next or if this is a super common problem.