Hi, newbie here. Ive been trying to get a little info, and came across this site. I figure if someone here cant help me, Ill sell the car.
I am planning on building an engine in the near future. Hopefully in about a year or two. Anyway, I had planned on starting with an L-98 and stroking the bottom, and adding all the go-fast stuff. But it has been brought to my attention that the factory F.I wont handle the engine.
The engine will (probably) be a 383, with forged pistons, steel forged crank, somewhere around 10:1 compression, with aluminum heads(maybe from motown:220cc int., 64cc.Comb.Chamber, 2.08/1.60 valves) Roller rockers, studded heads, and hopefully a 4-bolt. I havent worked out all the details, but I do plan on starting to gather parts. It will be professionally built, locally, so I dont throw money out the window.
I am shooting for around 450h.p. for a pump gas daily driver. And I want it to last. It will eventually see about a 200 shot of nitrous also.
My question is, what aftermarket F.I. system will support this engine. Im guessing it will require at least 1200cfm, and 36# injectors. Oh and I would like it to look like a docile engine, I dont want something that looks like it has 300H.P let alone 600plus on spray. If it has to be an aftermarket system, I dont want to spend $4k on it either. I had planned on a 400h.p. sleeper in the form of an L-98, but Im told Ill choke it.
What do you guys think?Can I have my cake and eat it too? A friend at work says he can get me a 4-bolt short block, like I want for less than $1500. Is that good.
Oh and I appreciate all the info, but I am not ready to start purchasing just yet, still have to much information to gather. Every other forum Ive asked this question on, I have been offered parts, and with rent due this week, my wife would kill me. Thanx.

 

The cheapest aftermarket system is the Holley Commander 950 system. Given 2 years, you good learn how to tune your current engine computer. -ECM-
And it will work just fine with your planned HP goal.
But you'll have to learn a lot to get it to work with a dry nitrous system. And you'd need injectors big enough to support the N2O HP. Not sure what you plan.

You need to decide what intake you want too.
A 383 and a LR tpi are redundant imop.
The HSR and Lt1intake are the cheapest.
Have a look at www.stealthram.com for info.

You might want to check with a number of engine builders.
I don't think mototown heads will be near the top of their list.
Dart, AFR, & Brodix are prefered by most I'd think.
The new Brodix IK200's look to be one of the best deals going on a 200cc head now. Since you plan on a 200 shot, make sure to compare the exhaust flow on heads.

 

Thanx for the info. The heads were just for sizes of ports and valves, etc.. I like trick flo or brodix, and a friend at work swears by canfeild, but I think they are a little pricey.
The reason I want to know about the aftermarket F.I. is ive been told the stock(upgraded) TPI wont take it. All I need is enough to power the engine, I dont need to plan on future upgrades. My original idea was to spend 1200bucks on a used L-98, rebuild it for 400 horses and then shoot it with nitrous. Over the course of the last week or so talking to people at work, and on other forums, they tell me its probably cheaper and easier to build the engine, without regard to the Fuel requirements, and add Fuel injection later. I refuse to carburate the car. Its injection or a bus. So Im still trying to gather info. Im not building a racecar. Just a stout street car, with enough ***** to thwart of those pesky imports. Im open to all info, but I do drive it, and I would like it to "look" stock. Or at least close. I know I have limitations, but someone here has probably done this before.

 

The stock ecm can handle lots of power.
You just need to spend lots of time on the DIYprom board to learn how to tune it. The stock ecm has more things to tune which results in better driveability. And it's only $30 or so for a replacement ecm. VS $600+ for an aftermarket ecm.
You can practice your tuning on your current setup.
The money you save on an aftermarket ecm can be put into the heads. Heads are one of the reasons the LS1's make so much power. Canfields are cheaper than anything I listed.
For the stock look, search on the alternative intake board for FIRST Intake. You might want to try a different board for engine specs...

 

Ive actually spent the last 2 hrs reading the info on the stock/modified tbi. I am willing to decrease my horsepower expectations for the surprise of a stock appearing motor. I would like at least 450 h.p. on spray though, and would be giddy with over 500rwhp on juice. Like I said, im in the information gathering stage right now. Evedently there are a couple of stout 305/350 tbi cars here. Ive got alot of reading and homework to do.