Anyone know the part number for the MAF burn off relay. The guys at the parts store looked for like 10 mins and couldnt find it.

 

I had to replace mine on my 88 Iroc, hope it is the same as yours.
Mine had factory GM relay still intact part number 7236 above and #14089936 below. This crossed to part #MR44 which is a GP Sorensen brand relay. I picked this up at Autozone for about $10 bucks.
One thing I had trouble finding is which one exactly was the burn off relay, there were 3 by the booster, one is clearly marked power relay so that is easy, the other 2 are marked as described above. I was told one is the burn off relay and the other is for the fuel pump, but when I unplugged both relays the fuel pump still worked fine. so I just replaced both of them not knowing which one was the burn off relay, must have been one of them because it fixed my code 34. Still not sure where the fuel pump relay is, hope I don't have problems with that one Anyway, hope this info helps you out, Larry.