I had 550cc, AFC, rewired 255 (non-HP), FMIC, 2g MAF, 14b/7cm, and stock FPR. Ran 11.98 at 113.2. 12.5 at 109 on pump gas. Al Blaha ran 10.5 at 132 with his modified MAF and stock FPR with a rewired 255.
Fuel cut is defined as follows:
"Fuel cut is caused by the ECU seeing a large airflow value from the MAF which works out to roughly 100% duty cycle on the stock injectors. If you install 550cc injectors which are 18% bigger than the stock injectors, then adjust the AFC to compensate for the larger injectors, you won't hit fuel cut until you
make up that 18% airflow buffer. Ideally you should get the injectors, AFC and the Technomotive ECU mods. This gives you safe, consistent fuel and allows you to run ridiculous boost levels without running too low on fuel or hitting fuel cut." (RRE)
And a good comparision of the two is at
www.VFAQ.com which reads:
"The 1G MAF has a lot of drawbacks to it, the biggest being that it is too small for enough airflow for high horsepower applications without major mods. The 2G MAF is much larger, with more than 50% higher cross-sectional area to flow through. If you are having problems with MAF overrun (see the Talon Digest Archives for details), you can either hack your 1G MAF up and hope you can tune the car properly with an AFC or similar fuel control, or you can run the Al Blaha MAF (which is hacked, just more expertly, with electronics changes), or you can install a 2G MAF with an AFC. I personally think that the 2G MAF is the best overall choice for a street driven car. If you install 550s at the same time as the 2G MAF, very little tuning should be necessary on the AFC to have the car running as strong as ever, without the MAF overrun problems."
Wiz