I am running a 1227749, and $59.

I seem to be running out of injector. Static RPM/Boost levels seem to be alright, but transients, such as going from low RPM/vacuum to higher RPM 15+ PSIG boost, I get a lean spike as it passes 7 PSIG or so. Slower building of boost reduces or eliminates the problem (opening the throttle slower, as opposed to mashing the pedal).

So I have a set of larger injectors, that I want to install, but they are low Z injectors, and according to information I have found I need to upgrade the injector drivers. http://home.comcast.net/~p-928/749mods.html I have the proper value of sense resistor, I've actually had them for a while now, but the MOFETS were already obsolete before I got the sense resistors.

I have found some information that suggests other MOSFETs to be used. I'll have to find the links again.

I have found a couple based on similar specs to the MOSFET speced in the link, but still need to find out about availability.
http://www.fairchildsemi.com/ds/FQ/FQB47P06.pdf
http://www.fairchildsemi.com/ds/FQ/FQP50N06.pdf

Has anyone found any specs on the original MOSFETs? I tried searching for the numbers that are printed on the MOSFETs without success.

I'm thinking about trying to use the larger injectors with just the sense resistor change, but the original MOSFETs. Anybody tried this, good/bad/other? I'll be changing from saturated injector control to Peak and Hold.

Thoughts?