Thanks for the correction.  I did not realize that the Monte based cars used the older 200-4R.     I looked in Jegs and found the $137 B&M kit with all its wires and control pannel for under the dash. Looks like a real kluge to me. Have you used it?  The one that was installed in my 85 Blake 305HO 700R4 is in the trans valve body area and cost right around $50.  Totally passive. In "3" shifts 1,2,3 stays in 3, no lockup. In D shifts 1,2,3,4th lockup.  I can manually shift 1 then 2 then 3 then D for maximum rev's-performance in each gear. If I hold it in 1,2 or 3 I get engine braking.  What I have not been able to find is a unit like I have in my 85 -700R4 for my 83 Neuman/Altman plain jane 305 (LG4) 200-4R.  



Ken and Keith: Sorry Ken but I must take exception to your notion that
Keith's tranny must be a 700. It probably is a 200-4R which was the standard
rear wheel drive tranny for the Monte Carlo's of the era. My 88 convertible
is a 200-4R, just like the one in my 87 Grand National, as you pointed out.
There is a simple way to tell by looking at the tranny pan. The 200 is more
or less pointed at the rear and has two distinct levels in the stamping
whereas the 700 is a basis rectangle and flat on the bottom from front to
back.
I hope this is of some value. By the way there is a kit available from B&M
for the 200 which will eliminate the "hunt and peck" motion.