A9L versus A9M versus A9P?????

Got an 86 Mustang LX, formerly a Nebraska SP trooper car. Dropped in Mass air, FMC 303X crate motor (advertised @ 345HP), 255 lph FP, 24# injectors, 1994 Cobra intake manifold, shorty headers, open duals (no cats) full road race suspension, 3.73 w/ 31 spline axle, etc... 3 years ago I when was looking for a computer, I found an A9P. Had to tweak the wiring harness with the adaptor wire for Mass Air, but otherwise, worked fine. Now the A9P sleeps with the fishes and I have to replace it. So, there are A9L, A9M, and A9P computers out there (and maybe more?). Which one will be the most aggressive with respect to timing and fuel? Me want HP! Do not care about emmissions or mileage.... I have a Tremec TKO, so transmission control is not an issue.
[addsig]

Use a WMS SDS as it is programmable.

Great toy, but $1800? How much better than the stock computer is it?

It's $1100 and yes it's that good. Tune on the fly, make adjustments after each mod instead of revisiting the dyno each time for a reburnt chip.

Well if you don't have $1100, any of those computers are going to work about the same. I run the A9P in my Bird. Tried a A9L, and really couldn't tell any difference in performance. But I did have stalling problems when shifitng into gear(auto) with the L that I don't have with the P.
[addsig]

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On 2004-04-21 18:04, TurboCoupe50 wrote:
But I did have stalling problems when shifitng into gear(auto) with the L that I don't have with the P.

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Since the L is for 5 speeds and the P is for AOD's that would make sense.

what is the M for then?

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On 2004-04-22 12:06, scorcher2005 wrote:
what is the M for then?
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Auto

so how are the m and p different than each other?

AFAIK the internal code is the only diff. The ECM's will be changed from year to year or mid model year due to a small change in the engine or emissions requirements.