New user, many questions, need help.

[flair666369]

Hello all, this is extemely long, sorry.

What i have - 98 GMC sierra Z-71 3 door stepside 350 5.7 liter sequential fuel injecton.

What i have done - Superchips programmer, K&N fipk cold air intake, NGK platinum plugs, 8.5 MSD super conductor wires, had an A.I.R. raid throttle body spacer, fully synthetic oil.

Problems i've had - Went off of bad advise and used champion truck plugs which turned out to be crap and produced a rough idle. TB spacer completely removed all low end power(great on highway though) and wouldn't fit underhood with the K&N. Got greedy with the programmer and maxed out my shift pressure, blew the tranny(thank god for a $200 deductable extended warranty and a mechanic who dealt with the warranty company). Steering "let go" on gradual turns(this site informed me of the Steering Position Sensor issue<technical service bulletin # 86-32-06 sep 98>). Constantly in a dilemma wether to build for speed or off roading. Biggest problem, i'm addicted to going fast/hard and this isn't the vehicle for racing, but i'm an idiot and will continue to go fast.

Questons-
1 - Is there a performance intake manifold for my application? after looking at the design of SFI and much research my guess is no.

2 - Is there a conversion kit to put a vette or camaro intake on my application(my guess would be electonics are different)? Would i have to change heads?

3 - What headers should i use? True duels(with crossover) or not? Exhaust size?

4 - After tranny rebuild(mechanic put stronger than OEM parts in it) it made a whirring noise similar to the sound of a fan being on or like a flex fan sound, my moms 89 olds did this, what is the noise, why does it do that, is it bad?

5 - I can't find a performance cam for my application, where would i find one?

6 - What other mods can i do for performance.

7 - How would i stop body roll/improve cornering? Full vehicle polyurethane?

8 - With all mods current and future should I be concerned with improving inner engine components ie. pistons/rods?

9 - Where would i find a cowl hood for my application?

10 - Is there a snorkel for my application(if i go for off roading)? I would build one myself but i'm not comfortable with cutting body pannels without some sort of guide.

11 - MSD ignition system(coil/ignition/distributer)? Would it really make a difference? I've heard yes and no.

12 - What can i do to improve off the line acceleration?

13 - Finding black residue post throttle body buttterfly. Cause/solution? Remove valve cover to intake tube vent and replace with valve cover filter?

I think that covers it all, again sorry for the length of this post and any suggestions/help on any of these many questions would be much appreciated. Thanx.