4.3 upgrades?

[chevyfan87]

okay...so i was planning a trip to florida, which got cancelled and now i have all this extra money to spend on my baby. i have a few idea but as nobody around here has quite the um...setup i have, i figured id check with you guys

i have a 2000 gmc sierra 1500 with a 4.3 vortec with a home made high flow intake (universal kit, modified to fit) a summit catback exhaust and thats about it, i bent a valve about 10k ago so i know the internals are sound because the top end has been completely redone.

now what should i do on a budget? i was thinking about getting a hypertech max energy programmer...but everybody says to actually get a custom tune, would the tune benefit me at all? does the programmer make a big difference on the 4.3? how much would a custom tune cost?

help me out guys

tired of hooking the chains up in 4 hi and holding it to the floor, just to have a 4.8 idle in 2wd and pull me backwards lol