I'm looking for maximum access to plugs , header bolts, etc. Not that concerned about inside the fenderwell/front tire clearance with a 1 7/8 or 2" diameter header main pipe. One better than another? One brand better than another?.
I got a brand new set hanging on my wall, Was going use for my 67 Bcuda but hated the idea of cutting fender well ! So if need LMK ?
I'm not racing , so I went with Schumacher
Right side plugs will always be an issue. Many people have solved the plug problem with holes cut into the fenderwells. The front three on the passenger side of the 440 are the most difficult. I use a box end wrench reaching from underneath the alternator. Number 7 is also an issue.