Need tank measurement!

[78whiteorbs]

Have a project franken build and need a stock xs gas tank measurement from front to back if anyone can help me out. Any standard tank will do 72-79. Thanks fellas

 

[650Skull]

72/73 will be different to 74-79

 

[resto]

77 Standard tank, nose to tail is almost exactly 23 inches.

 

[78whiteorbs]

Perfect thanks!