Any tricks for finding a leak in fuel line ?

SGBARRACUDA said
Your confusing pounds per square inch with volume.

Exactly Roy,
beer can is 2.6" diam
55 gal drum is 24" diam
2.6xpi is 8.168
24xpi is 75.4
8.168 x 15psi = 122.5 pounds of pressure
75.4 x 15psi = 1131 pounds of pressure