Alwaysworking

i have to open my pump up tomarrow. and after rereading the how to install 3200 gsk i have a question on the foot he says everyone talks about grinding off,
what does it do when you grind off that foot?
is there any other thing i sould do when i'm in the pump to upgrade it some more?

G1625S

The foot grind is a 1-way street. Put some thought into it before you start to grinding. Grinding the foot allows the governor lever to travel much further under no/low boost levels. Actually, it allows more travel all together, hence the 30-50 HP it's worth. The problem is, the grind nearly negates the function of the AFC, so fuel is not limited down low, which=smokey pig. If you do much towing at all, or are subject to any type of annual emmisions test, this is likely not the mod for you.

C/PRD/

If you want to try it out, just remove your entire afc lever. Then you can reinstall if you wish.

SkinnyBTN

I just did the 3200gsk last weekend and WOW! Its absolutely amazing what that little spring can do. When I was in the pump I was debating the foot also. What I did was grind just a little off. Maybe a 1/16th. Doesn't seem like much and I didnt think it would do much, but it did. I felt a huge difference in the way the truck performs. I'm having a hard time not grinding more off or just removing it. I just want use of the AFC. Anyways, sorry so long, just my $.02 worth. Good luck!

Alec

Removing the lever is only easy if you have the cover with screws sealing the pivot. The ***** or caps in most covers are a PITA and not designed to be reusable. If you grind, you can choose the shape and how much you grind, so as not to completely negate the existance of the AFC. We had a thread with a nice picture of the AFC lever and different profiles drawn on the foot, and now I can't find it! It woulda answered your questions. Anyone remember that from the way back machine?

Alwaysworking

i do a lot of towing so i guess this is not for me, but it would be interesting to know what the different grinds do to it.

Alwaysworking

how exactly does it feel when you up the power screw, is it like when you put in the gov spring for difference in power?

BearKiller

The most dramatic gains are from running in the main fuel screw.

Be careful as you can quickly get into runaway territory.

Alwaysworking

may be i shoot a vid when i start turning it up, just in case of a runaway, havn't done it yet because i didn't think i needed that much power but i'm on back order for my 60mm upgrade comp. so i might as well see what it will do before the upgrade, right?

Alwaysworking

just turned up the main fuel screw,what a difference, but what did you guys do to get it to idle?

now its a lot more responsive though shoots the boost over 35 quick and thats with the afc at a low setting

archer39

you have to adjust the idle with the idle screw. Check out the sticky there is a diagram that shows the location of the idle screw.

Alwaysworking

had it all the way out and the upper adjustment on the throttle lever was as far as it could go too

wannadiesel

Sounds like you will have to reclock the lever then.

Alwaysworking

you mean the spot with the index marks?

BC847

I'd try lengthening the rod that connects the throttle bellcrank to the IP. It may save you from digging unnecessarily.