No way. The electronics are calibrated to respond with a certain MAF curve (voltage vs. air mass). If you change anything (the size of the MAF body, the size of the sampling tube, the electronics) the sensor is no longer calibrated and is useless.
The difference between 36lb and 42lb injectors is only 16%, which is within the 25% (approx) range of the EEC to adapt. So you could probably get it to run with the Pro-M maf without a chip. But I'd be worried because the error would be on the lean side. Not a safe way to go. I'd say the best bet is to wait until you can afford either the chip, 42lb injectors, or a MAF recal.
(edit) heh heh we all replied at the same time...