Installed fuel pump without strainer...Okay?

you should probably be alright. im not running one but ive got a carb, so my pump is on the motor and it gets filtered before it gets to the pump and afterwards. the only thing that strainer does is keep the pump from sucking crap into it and causing it to fail. i think you should be alright. id be more worried about it not fitting in the bracket correctly than anything.

i dunno if it would hurt, but if it was me i would put one on...

i think it will be fine without the strainer, (i didnt have one in my '86) as long as you keep the tank clean (lol, they may not be logical). the pump should have a screen in it anyway.

but if you ever have any fuel problems, you'll know where to look.

You are asking a ton of "what if" and hypothetical questions in an attempt to psychologically reassure yourself that everything is going to be ok.

But, you know as well as any of us that the bottom line is the pump does not work/fit like it should. Going the trouble of pulling the gas tank is not something you probably are itching to do more than once, and that, coupled with the fact that you are running nitrous oxide on your motor, and that you know the consequences of an extreme lean condition while using nitrous, almost begs that you get a different/correct pump so you can use the strainer. If it were me, in the same situation on a daily driver, I would take the bus/get rides from friends as long as it took to get a different pump that would fit correctly. If it's not a daily driver, than this can definitely wait until you swap the pump.

Yeah, it might work as is. But it also might cause issues in less than 1000 miles. It's a total lottery.

Speaking of lotteries, how do you feel about your odds?