Hi every one. Im new to the site. Im doing a conversion on a 1985 chevy 2 wheel drive chevy crew cab dually. When im done it will be 4x4 fleetside crew cab. Stretching the cab 8 inches and putting a 1st gen cummins in it.

 

Welcome to the site

 

Sounds like a great project! Keep us posted.

 

Just bought 4in turbo back exhaust, phat shaft turbo, fuel pin, and spring from industrial injection. Going to get 100hp injectors from source automotive next. Any suggestions on exhaust manifold?

 

Unless your pushing some serious ponies (500 hp and up), your stock intake should be fine. Ive seen 711 hp (dyno day in Fontana, California 3 yrs ago) on a stock
1st gen intake. Not my truck tho, sadly.....

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My bad, I thought I read "Intake manifold" but its exhaust manifold. There are several different makes of EM. Research and compare. I have a stock one, but Im only running 402 hp with a healthy dose of Meth/ water injection.