What a whiner. Not only can you not defend your position, but you. . . wait, you have no position. And why is that? I presented a simple case and you don't know what to do. Hmm. . . "Don't play childish games". Yo, dude, that is real, not a game, this is real data from a real engine. I knew what to do the instant I saw the data. That engine required more airflow.

If you would like to speak of personal attacks you need to look no further then your attacks upon me, one after another.

I have personal experience and data to back up my recommendations. What do you have?

RBob.

once again: if you've gotten a 454 tb to work on a 305 put up. otherwise ......

even though i find this really interesting, some advice gunz4life, if you're even still reading this.

Its $15, buy it. Try it. If you can get it to work, kudos to you. If not, sell it on ebay, they go for well over $100, you'll make enough profit to offset any inconvience you had puting stuff together.

-chuck

Wow, big words from someone with no experience with modified engines and TBI. But then again it is all you have had (not) all along.

It would be advisable of others just as well to ask you the same question: "if you've gotten a 454 tb to work on a 305 put up. otherwise ......"

RBob.

no experience with modified engines? how many 11 second street cars have you built? i've built 3. this is my first experience with tbi, but i've been playing with cars since 1975.

and i'm not claiming the 454 tb will work on a 305, you are. i pointed out an example of someone making 300 hp with a stock tb on a 305. you ridiculed that, but you have yet to provide ANY examples of your opinion being correct except incorrect airflow figures for the wrong throttle body and miscalculated formulas based on impossible to achieve values.

for the third time. if you've gotten a 454 tb to work on a 305 .... if you can provide documentation of ANYONE getting a 454 tb to work on a 305, then

put

it

up.

Keep twisting there Sean, maybe you'll convince someone, someday. Again, the question is: what experience do you have with big TBI units on modified engines? Again, your answer is: none.

From what I can tell from your posts is that not only do you have no personal experience, is that all you can do is to quote from "I heard" and magazine articles.

Maybe you should do a search right here on TGO's TBI board for folks that are truly going fast on TBI equip'd engines. You could even PM them and maybe get some additional info on what they did to go that fast.

RBob.

I think the arguments over this 300hp 305 build are absurd. So they did the build in 1989 and said the 454 didn't yield bigger power. Like has been said before it COULD have had it been tuned in properly. I'm sure that same engine could have made far more power with a properly tuned in 454 TBI unit. In 1989 they had nowhere near the tuning capabilities we do now. The hac for the ECM was not done yet and no editing of that Prom in that build took place I'm sure. Now that tuning has come so far and has become relatively easy for most anyone to do there is no harm in putting a 454 TBI unit on a built 305 as long as you're willing to put the time in on tuning!

Also, I think you're really underestimating RBob's experience and expertise with TBI's; I honestly think you're thinking too much along the lines of carburetion and not seeing things clear enough from the fuel injection standpoint. I think you need to step back a little and read over everything in this post and do some more searches on the 454 TBI's on the Prom board.

As far as the argument as to the flow of the 670 at 3" or 1.5" nobody is positive on this so there's no point in arguing over it. One guy called and got one answer, another guy called and got another answer. I honestly don't think that will be settled ever unless we find the guy that worked at Holley and flowed the unit himself which isn't going to happen (or if someone ever steps up and flows it). On these boards, arguments are ways of debating issues and coming to an ultimate conclusion please stop taking them as personal attacks I'm sure they're not meant as that.

ha ha ha .... #4 if you've gotten a 454 throttle body to work on a 305. put it up.

interesting, the way you just ignore questions you don't have answers to, isn't it? you so emphatically state that the 454 tb will work and laud your experience and knowledge, yet you don't answer the question. you haven't done it, have you? you're a moderator of the diy prom board. anyone doing this mod would have to do a lot of chip tuning. surely the moderatior of that board could point to instances of it being done.

Board member Chuck! and I should be able to tell everyone soon how the 454 TBI will work on a 305. All that is needed so far is an old style IAC harness plug, and a little fab work to the linkage system. Prom tuning and injector sizes aren't a problem and have already been taken care of. I geuss I don't see what the big deal is.

Could someone please turn off the quote feature for awhile. It takes me sooooo long to scroll to the bottom when everybody quotes every word someone says from the post right above the they just replyed to.

Thanks Steve

Hey guys, I'm sorry for causing such a nasty debate. I think I'm going to try the 454 TB on there (it's only $15) and if I can't get it tuned correctly for my motor, I'll either save it for a 400 or just sell it. Thanks for all the good advice. I might even try to have my throttle body bored out a little. I really appreciate all the good advice....sorry about the big debate I started.

Don't worry about the debate at all some people just like to spark debate. Try out the 454 I think you can get it tuned in if you ask enough questions on these boards and search around. You can get tons of help from all these guys if you just ask, good luck with it.

Sounds like we has a happy ending to the origial post. Now would be a good time to lock this one.

Steve

Not your fault gunz4lif2. The whole problem is that folks build up engines then have people with no experience tell them to choke it with a stock 305 TBI & injectors. Then the guy who built the engine wonders why it is such a dog. Makes no sense at all.

A follow up to my post with the 1-11/16" TBI unit dropping some 8 KPa at 4375 RPM, here is what that same engine does with a 2-1/16" bore 2bbl TBI:

As you can see it isn't even at WOT (98% TPS) and the MAP is at 98 Kpa. Much, much better. The engine runs like it should.

As for the engine this is on: a mild 327, stock heads, single plane intake, headers and a small cam (222 @ .050, .465 lift, in & ex).

RBob.

I must say there definetly was some good information in the beggining of this thread, so I'll leave it up. But just on a hunch, I think it's tech value has started to run thin...

Bruce (90RS305)

adding.....

ive run a 454 on a 305, back when i was ignorant to tbi. - as the first reply says, see my past posts...

This post wasnt just dumb near the end; it really was completely retarded towards the end.

People, dont post such crap, keep it tech, and keep from bashing eachother and getting into shlong measuring contest.