I'm tired fighting the carb on my 53 f100. Linkage is worn, some screw threads are stripped out, idle is erratic, can't keep it adjusted etc. I've rebuilt it twice and it seems to run good for a short time, then becomes erratic. Also the accelerator pump linkage has a catch in it because of being worn. I've been eyeing the new replacement 94 pumps at Mac's, Dennis Carpenter etc. Are they any good? I'm looking for some feedback from those who have used one. Thanks