I was just going to update my last post but do not know how or it wont let me. I have read every page of this and love it. been looking for information like this for a long time! I really appreciate you taking the time to post this and with all the pictures it helps a lot.
I understand you used the 98-99 F-Body manifolds? just cut off the flanges and welded extensions on then ran the exhaust? did I read that right?
You used a all aluminum radiator. after your first one was broken. What was the first radiator? PN#? I'm guessing a 4.3L radiator for a old square body? I found a all aluminum rad on the site you recommended but said out of stock and awaiting a reply on if they will get more. Thanks for that. but how did you run the steam port?
Do you have any pictures of the wiring? I am at that stage. But I got the standard No Gauge cluster just dummy lights. with aftermarket gauges under dash.
What PN ACDelco pump did you use? modifications? lines? I got a million and one questions if yu might be able to help or of anyone can help.
Please message me and we might be able to email.
By the way, Mine is a 1986 GMC S15, Base, STD cab short bed, Manual brakes, Manual Steering, Just a base truck not looking for a hotrod just a fun daily.