[jw4413]

I own a stock 94 4x4 suburban with a factory 454 and a 4speed automatic. Since I live in a high elavation(6000 ft) I'm lacking the horsepower I need to pull my 24 ft.enclosed trailer in the hills. My question is what would be the easiest way to pick up some horsepower without spending a small fortune.

 

[NXS]

I'm not much of a big block fanatic but If it was mine I would look towards exhaust & air filter...then a chip. Also some rocker arms. I think the 1.8 ratio would really pick up some serious* power but I did a quick search and found these 1.7s at a really good price:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7938420479&category=33624
I do not know if you need special rockers for your year, I'd ask a BB specialist.
Maybe there is a BB guy in the room that can give you some advice.

The biggest bang for the buck would be a set of 1.8 rockers.

 

[tornado-tech]

Add a K&N and a cat-back exhaust will be the easiest thing to gain a little more hp and torque.

 

[Robinson Robin]

Headers really wake up bbc's

 

[ChevelleSS_LS6]

remove that corregated intake tubing, and the intake resonator. I did that with a KN and it has a little more throttle response and a nice growl at the intake.

I think edelbrock or someone sells an intake manifold for TBI GM engines. I'd do headers first though, log exh. manifolds are pitiful.

 

[Restore60s]

Suburban

We did our 95 fairly simple. Flowmaster Dual Exhaust, K&N air filter, reprogrammed the ECM more for towing and it was like a new vehicle. Man, that thing would pull anything. Our 99 Tahoe feels like a V-6 compared to the Suburban.