Hi po manifold hardware question

I would clearance the hardware if possible. How much do you need to remove?

I wouldn't have to remove a ton. It's pretty close but I'd shoot myself if I broke off the ear on one of these things.

Looks like that's where they should go. The holes in the manifold you pictured clearly has larger holes. What year and engine are you working with? Here's a 68-70 kit. Exhaust Manifold Fastener Kit 1968-70 340, Exhaust Manifold Fasteners, 110-EMHK8135 Reproduction, NOS and Used Mopar Muscle Car Parts

It's a 68 340 with this exact kit right here.

fits 68 69 70 340 HP Exhaust Manifold Fastener Kit NEW | eBay

edit - actually right now I am fitting it up to a 318 (year unknown) so I can get the exhaust installed. I'll be dropping in the 340 sometime this summer.