I've been looking for an intake system to replace my factory tpi, it looks like you can't get the tpis bigmouth or the holley stealth ram. i mean the intake manifold and runners only, not the whole system with wiring and such. can anyone confirm this? thanks.

You can get the HSR just about anywhere as just the intake and plenum + fuel rails. It may be the cheapest new option. The next best would be a single plane intake, the professional products hurricane efi is what alot of members are using, it is affordebly priced and better to use if you have forced induction. Usually at least once a month a used good condition Alternative port efi intake pops up on these for sale boards. With either of those intakes you will have to add in fuel line or re route some fuel line since their fuel rails have the in/outlets at the back of the engine instead of the front.

How about this one ?
http://www.summitracing.com/int/parts/wnd-7540

or the Vortec head version
http://www.summitracing.com/int/part...7542/overview/

fuel rails
http://www.summitracing.com/int/part...-186/overview/

or a cheaper rail alternative
https://www.thirdgen.org/forums/alte...tive-fuel.html

The big tube base is available in stock and Vortec versions to use with any stock or aftermarket big tube runners

http://www.summitracing.com/int/part...3817/overview/
http://www.summitracing.com/int/part...3860/overview/

http://www.summitracing.com/int/part...3865/overview/

Ok so i obviously need to work on my search skills, I looked all over summit and jegs for that. Thank you for finding it. I really would like the hsr but i still would like to keep the egr since this is primarily a street car and since there is no provision for the egr, it's probably out. I think it would be a better fit for my cam but i could probably use better flowing heads to take full advantage of the hsr. So I'm thinking I'll probably go with a higher flowing aftermarket TPI base and runners. I do have a couple of questions tho. Is the edelbrock intake the same as the TPIS one? I think i've seen that on here somewhere. And I know I've seen this on here but can't find it now, there's a list of all the intakes and runners from stock on up and their cfm ratings. Can someone refresh my memory on where that is? Here's my set-up, Any thoughts, guidance?

383 sbc 10.2:1, Trickflow 180 heads fully ported, Lunati roller cam 232in 242ex @.050 .510in .525ex lift 110lsa, 1.5 crane roller rockers, headman shorty headers, high flow cat, flowmaster muffler, stock ported base and runners 58mm tb, 30lb injectors, afpr, crane hi 6 ign., jet custom chip, gutted airbox, k&n filters, 700r4 2500 stall, aussie 9bolt with support girdle, 3:27 gears. everything spohn makes, eibach springs, kyb adj. shocks.

Unless you have to have the EGR to pass emissions, it does nothing to improve the "Street Car" abilities of your car.

Ditto. If you only have the jet chip you need to buy tuning equipment or have a real tuner do a chip for you. TunedPerformance is really good about it. You have a lot to gain from one, the jet chips have very few changes made to them. You also need some bigger heads, 180s with that cam on a 383 is a mismatch. You may be able to trade a member for some 195, 205, 210s. If you must have egr look for a used super ram or big mouth. If you don't have visual inspection you can pass without an egr valve, there are some old threads with members doing it.

There is a accel base for a good price in the classifieds The 383 needs to breath

You might reconsider after reading this comparision

http://xtremecarzone.com.au/index.php?showtopic=386

especially taking into consideration the extra $$ of a big mouth setup
Don't look at the HP , compare the graphs as to where each intake works best;
even the best aftermarket long tube setup is flat after 5500

The chip i have was a custom chip, not just a chip off the shelf but I do think you're right that there is room for improvement. The heads were actually on the original 350 that bit the dust. My plans are for AFR heads with a 415 or so sbc, but that's down the road so I have to work with what i got for now. Part of the reason I wanted to stay with the egr is to avoid having the chip redone but after your post I need to talk with Tuned Performance I think. I'm not even sure on the egr here in Iowa.

So do you work on chips? Or was he refering to another Tuned Performance?

The reason i was leaning toward that intake was for more low to midrange power since the motor will spend more time there on the street, probably as&m runners and high flow base not so much the TPIS runners. I really like the HSR if it weren't for the lack of egr. I didn't really want to have my chip reworked but I'm going to look into it after reading some of the responses. With the intake I thought the motor would spend more time in the midrange more than the top end, on the street anyway.

I would go with a stealth ram on your 383 for sure.

As Johnny Blaze noted , I was considering it more for your 383 app;
I can tell you ,my old 383 w/HSR combo was no slouch at the bottom end

Just swapping from a fully worked, big tube TPI intake to the HSR with no other mods dropped me from 12.7 to 12.3 with the same 1.7X 60 ft time
In fact, the theoretical " loss" of bottom end torque made it easier to launch the car consistently over the " excessive " bottom end of the TPI setup that required a more delicate application of the throttle

That is exactly what they found in this article. Their 60' times actually improved.
http://www.gmhightechperformance.com...hird_gen_iroc/

I had thought of that too, that was one of the reasons I liked the HSR. That and the price. The car is hard enough to launch with the stock tpi, losing a little on the low end would help. I hope all the suspension mods help some too. Horsepower does no good if you cant put it to the pavement. I need to see if i can get something done with the chip for the egr, if I can the HSR sounds like the way to go. Thanks for the help.

I'm that guy

So how would that work exactly? I have a custom chip that I had made from JET, would you redo that one?

The best bang for your buck would be to use the jet piggyback holder and I can give you directions on how to swap out the prom. I'm not really a fan of the 80s programing in the aftermarket jets, ads, hypertech. They made suck small changes in the timing IMO it was a waste of money and false advertisement. going with the 89 tpi maf programing will help with cold starting. If you buy a moates.net extreme aldl cable and datalog with tuner pro I can really refine your engine tune based off the datalog. I do have a tune That I made for a 383 that maybe real close. You would just need to give it a try and give me feedback or datalog.

I'd interested in trying the tune you have and then maybe doing the datalog later on if i can. The datalog thing is a little over my head right now but with some help i may be able to figure it out. The tune you have would take care of my egr problem if i go with the hsr? And air pump, cam and such? What would that cost for the tune?

yes, The tune will take care of the egr error code 32, egr function and air pump . I will be more than happy to walk you through datalogging whenever you like. Your ecm service number 1227165 is real picky on connecting to. It seems like some with that service connect real easy and some drop the connection or will never establish a connection. There is no known fix other than trying another ecm ;( . For the reprogramed prom if you would like me to instruct you how to instal it on your jet piggyback adapter since its just about christmas $50 shipped. If this doesnt make a big improvement I will refund the money minus the shipping and a few dollars for the cost of the prom. Or we can hold off and work together when you are ready to try datalogging through email or personal messages

I am interested in trying the tune, what do i need to do to get it done? I'll see how much of a difference the tune makes first. The bad thing is I probably won't be able to try it until it gets warmer like spring. I live in Iowa so it's hard to tell when that will be. But maybe i can gather up the money to get the HSR also before then. Should make a big difference I think. It runs good now but I know that 383 is starving for air. Then my heads will be the limiting factor in the cfm. At least I will know the intake will be able to feed the heads all they can take until I upgrade heads anyway. Thanks for all your help.

Hello? Tuned Performance are you there?