More Questions. now on 94 p/u

[Mike Rolica]

A while back I got the motor on my old mans pickup rebuilt.  It is a 94 Fs
GMC ¾ ton 4x4 Ext cab shortbox.  It has  350 tbi 4spd (60L4E I think) 16"
tires ect ect.
He does a lot of towing as he has a farm on the side, A 20' 2 axle cattle
trailer- about 11 tons most of the time.  He goes to Denver col. Every year,
new york, ect. Ect at 200 000km the motor started to knock when it was
cold., burn oil ect.

We rebuilt the motor using Isky custom sing pattern cam, 265 adv., 450 lift
(I think, it's around there)  I did some work to the heads :-) gottem swirl
chamber buggers to flow a little better (80%)  which is the reason for the
single pattern cam.  Used hyperutectic flattops, decked block to .005 in the
hole.  Runs about 10.5:1.  On the dyno it ran awesome, used a Oval track
distributor some 104 oct and a 2bbl Rochester also used for oval track with
an adapter plate  made up.  Plate was kinda crude as intake bores were a bit
out compared to the carb.  Motor made 300hp, 405ft-lbs.

Now in the truck runs like crap!
Before, the truck ran rough at idle (shook), smelled like rotten eggs some
times. Now it is worse.  Also sound like a diesel when cold until goes into
closed loop,
Would appreciate it if some people could give me info on the following:
*	Ecm/pcm type number
*	Type of prom
*	Suggested mod to programming for new motor and the application of
the truck
*	Links to anyone having experience on this ECM
*	What to do
*	Any suggestions
*	Bruce? Any comments
*	Please
*	Hacks
*	Where to look
Mike Rolica
EXT. 260
 :-)