EDELBROCK PRO FLO 4

I order the bolts from edelbrock too and there too long the heads hit the inside of the intake manifold and I cant get them threaded I've even shaved the bolts to make them fit but still no luck

What length are they, and are they hex head or caps screws (Allen)

Edit:

The different shape and location of the runners can cause issues with installing bolts of the proper length, it can be a little bit of a challenge.

Did you speak to someone at Edelbrock yesterday? I have the same kit and was talking to Bryan there about the bolt lengths I had to use installing my kit.