I think this must have been the "availible" ticket, back in the day.. Maybe thats why my 69 340 had these on it. when I aquired it. but now-,, airgap and holley, ain`t goin back. But if anybody`s tossen TQ`s throw em in my trash can. heck I got to where I enjoyed rebuilding them, once a year or even less. Far as hood clearance. my breather nut is just- rubbing a hole in hood insulation. not hitting metal. and I`m using 1/2" spacer. 71 mani + quad set was @ same height. you would`nt think that, by comparing them. btw my car 67 cuda:-D
