Gds 60mm upgrade...good enough???
 

Hello bombers,
Ive been doing a lot of searching here and on other forums while doing my 86 gmc 1 ton 4x4 srw crew cab /6.2 to 1st gen non ic 6bt swap. It has seemed to me that you guys here have great experience and knowledge and i need some opinions as I finish this project.
I ordered a 60mm upgrade from gillette diesel and have not installed it yet, and im not sure if its gonna be enough of an upgrade with my heavy ass truck. Im worried that it will get too hot under load or wot play time For mods ive got(or will get):
6" lift with 35's
intercooler
ddp3 injectors 100-150hp
timing advance spacer
3200 spring
denny t stage 1 fuel pin
pump turned up
holley black lift pump
4" turbo back exhaust
afe or bhaf filter with diy cold intake
My truck weighs in at over 6200 lbs empty and no fuel. In your opinion when im wot and playing hard will this upgrade handle egt's to a dealable level or am i wasting my $? I dont tow often only a wakeboard boat once in a while. This will just be a weekend dirtbike haulin hot rod 4x4. Thanks guys for your help.

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Ive been considering good used s300 or super hx40's as another option and would like to hear thought on these if the gds upgrade wont be enough with my other upgrades .