Not to happy with the truck

[Lsx10]

get longtube headers and a good intake, like a fast 90/90 or the new holley setup. you should see an extra 40+ horses out of it. an that would be all the time power through the powerband.

EDIT:

if you can afford to do heads at the same time you should be able to see an extra 70 horses if you match the intake, heads, and headers. especially with a good tune.