[Gmecm] 1227747 close replacement (with 8192 baud ALDL)

[kris schneider]

Ok guys, I'm something of a tuning newbie but I'm slowly learning - I'm on 
my fifth chip and (suprisingly?) my truck runs better now than it has on the 
first 4, which is always a good sign.

My question today regards the 1227747 ECM.  In my truck (a '72 Cheyenne/20) 
with a 454 TBI & 350 injectors, I'm slowly getting the VE tables worked out 
so my truck will actually accelerate half-descent and eventually I'm hoping 
to get in a few more modifications to my motor and with adaquate tuning & a 
new gearbox, give some of the local mustangs a run for their money.

Anyway, I'm noticing that the slow update time in winALDL is making it 
rather hard for me to get a firm grasp on exactly what needs to be changed, 
at least harder than it would be if winaldl updated faster than every few 
seconds.

So my question is, what GM TBI ECM's will drop into the '7747's place with 
no, or at least minimal repinning of connectors, and no changing sensors, 
but have the faster ALDL bitrate?