Pete 359 8v92 Detroit power upgrades

Just like any hotrodding, more fuel, more cam, better exhaust.
Might try supplementing with propane?
Beautiful truck, by the way!

 

That's a good looking old truck ya got there making me jealous.

Anyway I know a guy on youtube i watched, he put 9215 injectors in his 8v92, he said it should take it to the 600hp mark. That's what his book said it should be

 

Wow nice truck!!!!!

 

I would look toward the coast. Lots of boat applications ran higher horse power. Just copy that and or ask on boat forums.

 

Sharp old girl!

 

90 injectors are stock in a 475 silver.

More power = more fuel.

I put in super 100s injectors in my silver 475 back in the day. Dynoed 450 rwhp.

I'm thinking you would need a set of marine 115 injectors to get your 550 hp.
You'll also need a old school mechanic that knows the tricks to running the rack in those 2 strokes to fully get everything thing out of them.

 

Nothin sounded better than an old RyboVich sporty fisher running those old Hopped up Detroits jus a Windin back in the Days on a early calm mornin.

 

So how did you come out on HP? I'm curious because I have a 1981 359 with stock injectors rated at 435 hp. Mines half for play and half for work. I would like to get a little more hp out of her nothing too crazy. By the way I am currently getting 6mpg hauling 1100-1200 bushels of corn to the ethanol plant. Its about a 60 mile trip through hills.