Looks to me like you bought the wrong alternator. Check your part numbers, I don't think you ordered the part number that the instructions say to use.

It's the same physical size just a higher amperage.. I checked that first

it's the same alternator just not black and have the upper mount shaved. Only difference is mine is 100 amp.

Same here but I had to cut down my bracket slightly due to it hitting my tubular K frame (Not the factory K frame).

when I went to fit up my east coast mini there was no way it was going to fit in the little tiny space by the crank trigger, it hit every where, ended getting the ultra mini and was able to get it where I wanted it then came the mount top mount I drilled the lower bar or the AR plate that had the scallops and tapped it 3/8-16 and made a adjuster bar that I mounted to the side of the frame works great plenty of adjustment, if I can get a chance I will take a pic of it and try to get it posted on here.

here is a pic of the lower mount, you cannot see the upper part but it is just bolted to the bottom of the plate and spaced to align to the drive mandrel pulley.

i'll send you a pic on facebook of mine

But the real burning question is why the logo is on the backside...

I got it to clear so far. Moved the braket up to the next hole, The upper bolt now goes through the web opening so I made a 1"x.25 aluminum washer for support. The adjuster braket will come off tabs on the frame rail.

Thanks for your guys inputs.
MOPARS TO THE FRONT

Al or any other members do you have a part number on the alt you guys are using on the dragster I'm getting ready to start final assembly next week and still need the smallest alt I can find with atleast 100 amps of current.

Can you make a disc the size of the hole to support the bolt and slot it to fit the bolt size?Just an idea to make it stronger.

Thought that Logo being on back side was silly as well, but it is what it is. I use the DMI alt mount with a toyota denso alt and it fit just fine. Not using a crank trigger thou. Had to buy 4 different serp belts til i found the one with good adjustability.