LuvDaBlues Steve How hot is the motor when this problem happens? I see you are running under drive pulleys with an aluminum motor. Do you have a temp gun for checking under the hood? Try this trick and see if the hesitation gets better, worse, or stays the same, open the back of the hook about 1"-2" Use rags to protect the paint and go for a ride. If the motor is the same problem and the temps are all OK, the next place to go is a dyno shop for A/F ratio check. If you want, you can buy a LM-1 meter for about $400.00 and need to weld a bung hole in the exhaust to check the ratios of A/F. This will point you in the correct direction to fix the problem. Also Check the cap and rotor for any carbon tracking or contact point being burnt in the center of the cap. Make sure the contact point is tight and you can't move it. Your coil may be breaking down internally from engine vibrations if it's an
oil filled coil. I know the coil mounting location is correct but a bad idea for an eletronic part, heat and vibration. Rick L.