XJOSHX

ok I have an L98 motor (TPI 350) in my Iroc right nowe and I am having nothing but problems. I decided it's time to ditch the TPI and go carb.

Here is my main question; Whats the eisiest way to see 300rwhp n/a using the stock bottom end?

I am also going to be spraying this motor. I know the bottom end is not going to last me too long so I don't need the heads up on that

I do how ever plan on using a proform 750cfm carb with a victor jr. intake. anyone else for any advice?

Price is a huge concern, I am on a budget but want to race!!!

Dialed_In

iTrader: (3)

whats your budget? Vortec heads and a mild cam around 220* will make good enough power and thats about as budget as you're gonna get. . Also that's probably not the best intake for what you want to do

XJOSHX

I don't want to go the vortec route. the intake and carb I chose to use will actually be for my 383 with aluminum heads and whats why I want to use them. I do not want to have to buy twice, thats also why I am staying away from vortec heads.

Rick King

just get that motor running with some budget heads used vortec or cammel backs or 441 castings, heck I would just use thos tpi heads i hear they flow decent. Use a performer intake or a torker 2, and a cam like specifed before graduly bring in a 150 shot Do not put the victor jr on it will not be in the power band for the motor, mismatched parts cause more harm than good. or better yet do not do anything with this motor sell the parts to put toward your 383.

later and

GB

rick

Dialed_In

iTrader: (3)

The torker II is a horrible performance intake. Ok for stock carb/heads on a smog motor. Go with something like a Performer RPM or the Air Gap, you'll be happier.

todd200

See Sig

At the time of the dyno I had 11.9 A/F ratio and was only getting 30* timing advance. Also just swapped on a Team G intake. I'm hoping to bump that up a bit.

89formulaws6350

If you dont want your TPI i will buy it.

todd200

Actually I bought an L98 long block. The tpi was long gone. Sorry.

XJOSHX

I figured you guys were gonna give me more crap about running a 750 race carb than the vic jr


L98 heads are really not that bad of a design, especially if you clean them up.


I was even debating on the double hump heads (sum-152123) that summit sells. It's either them or summit. This combo is only going to be on the car until early summer when the new heads and shortblock go in.


I basically want to use the valvetrain and induction system on the new motor when it is done. I know it is gonna be a mismatch for the heads (what ever heads that m,ay be at the time) but thats my current train of thaught.

I have had a fair share of nitrous cars before so I am not gonna hesitate on the 150 shot. Thats a baby shot Once the new shortblock is in I want to spray 250+




is there a really tight budget head that the vic jr can match up with?


ok, after some searching I found another good set of heads rather cheap. BRO-1021001 (summit PN) and they are 200CC brodix heads for 1k assembled. No question about them and the vic jr.



Keep shooting out recomendations guys. It's all taken into consideration.

Dialed_In

iTrader: (3)

It's like beating a dead horse, everyone on this forum thinks a 750 is the smallest you can go, even on a 350

Dialed_In

iTrader: (3)

What do you plan on dropping in it later? Those Brodix heads you listed are pretty much bottom of the barrel that Brodix offers. Only available in straight plug, cheap seats, valve springs they send aren't as good as they should be, heavy valves, poor valve job, not to mention the runner design is sub-par. lots of little differences between them and the Race Rites that aren't much more expensive and well worth it. If you plan on putting them on something that's going to utilize the potential of a Victo Jr., then these heads WILL hold you back. For a 300hp. motor, yes they'll be fine. But it you plan on building a performance motor that'll make 1.5-2 hp/ci then go with a better head.

XJOSHX

well total plan in the end is;

direct port fogger WITH a plate system
fully forged high end 383
afr 227's race ported or custom ported dart PRO 1's
shaft mount roller rockers (when I do this i'll most likely go solid roller)
belt driven timing chain
2 speed powerglide
splayed 4 bolt main caps



Thats on the list of mods for next years spring. This years spring goals are jsut what I have been alking about this whole thread. Once the mew motor is in I am going to be worried the vic jr. is not gonna be enough and I am going to need a super vic

jimmy_mac

gonna need at a minumum the lt4 hot cam or the 270 HR comp cam(218 @.050, 224 @.050). Of course good springs. Get the heads at least flowing in the 220 + range on the intake with porting, and of course the exhausts up also. Might as well port the heads though if you're gonna upgrade later instead of wasting a lot of money now on new heads you won't keep.

Or compromise and get the AFR 210s now and use for both. AFR does make 210s right?

XJOSHX

yeah AFR makes 210's, if not dart does. One company makes 210's and one makes 215's and I always get them mixed up. I'll probably be going bigger than that with the cam specs. I already have an AFR hydra rev kit laying around. I am not one to care about something being streetable. If it doesn't over heat or break it's streetable to me.


I would jsut buy the good heads now, but I have to bail my shortblock out of the machine shop. I also don't want to throw crappy heads on that short block so I figure by late summer next year I can have the good heads and shortblock done.


Them summit double hump heads are looking better and better by the day! cheap and after I use them I can probably sell them for a good price.