estesformula87

90 camaro rs and its about time to freshen up the car the suspension is all getting redone all adjustable stuff on the rear the motor is getting a freshening up shale you call it all new seals bearings and gaskets the car has a 383 with th350 tranny shift kit factory converter 273 one wheel wonder gears. ive already got a lot of the things i need but am stuck on some of the parts as to the fact that im newer to performace work and looking for more power not stock replacment keep in mind ive never been lower then the pistons and rods on this motor so dont know whats down there.
im looking for some more power for the strip haven't taken it yet cause the car has always been lacking some where ive narrowed down the wore out stock suspension is not helping out. i have a new 373 gear limited slip already which should help a lot. the car never ever gets driven farther then ten or fifteen miles so im looking for as much power as i can get out of what i have with out changing the very high dollar parts like the heads and thing of that nature with that being said this is what i have and what changes can or should i make to this motor (cam size. rocker ratio. springs. stuff like that no thousand dollar parts or complete start over.)

383 stroker motor
edelbrock 600cfm
weiand x-celerator or victor jr intake i have both weiand on car
1.52 roller tip roker
rhs heads 23 degree 167cc runner 76 cc chamber 1.437 spring (i think was told spring size from previouse owner know how that goes) 1.6 and 2.02 valves
cast hypereatectic flat top 030 over pistons 5cc 4 reliefs for valves
compression distance 1.560
deck clearance .025
skirt clearance .0010
msd box with accel hei dizzy
thanks for any and all help

Damon

Carb is small-ish for a 383. Single plane probably isn't helping you, but isn't hurting much either. Heads are where the power is at and those heads are gonna hold you back on a worked 383.

What cam does it have now? I'm guessing something pretty small.

estesformula87

im not sure of the cam i have never been that far into the motor and it was in the car when i bought it but the sound of it is a pretty fast idal with a small lope so i would guess its not very big i read some where the heads wont work with any thing bigger than a 550 but im not really informed when it comes to came size any way ive always mostly just worked with oem replacement parts

i was thinking a bigger carb to i have a calabration kit for the 1406 every time i go richer its to much strong fuel smell and black plugs i have a 750 of a friends where going to put on and see what that does right now it has plenty of power with a roll start and doesnt really like anything over five thousand rpm range is my stock converter maybe hurting here to

its like this in the range slow off line picks up in middle pretty good and then drops off again am i pretty mush just sol and need to redo the whole thing i relly dont have the money for that but then again the car isnt going any where i have a crush on it lol

estesformula87

what cam should i have for this set up for geting the max out of it its hydrolic
im figureing its a low compression motor from what im seeing it had in the top end its all top quality name brand but it seems to be all coming back to not much over a stock motor

DeltaElite121

Your whole build is mismatched. It's going to cost you some big coin to get things where they need to be.

- converter is wrong and will need matched with cam and gears.
- carb is wrong. Needs a 750-850 carb.
- intake is workable but currently a bad match
- heads are way wrong but can probably be milled and ported to change that
- cam is most likely wrong if all this stuff is.
- will most likely need a fuel pump upgrade


See where this is going? Big bucks real quick. I know it sounds harsh, but I am just being honest with you.

estesformula87

sadly not what i was really looking to hear but thankfully the good lord has blessed me with the credit to get just about what ever i want and after reading this i went to talk to my banker i have five to ten grand to put in motor only now (doesnt hurt banker is huge third gen fan lol) so that leves me with should i keep what i have and build it better if so what should i be changing here not a big performance guy like i stated earlyer but im a hell of a parts replacer lol or whould it be smarter and cheaper to go create motor route thanks again guys

DeltaElite121

Don't do that. Don't take loans on buying car parts. I know it seems appealing, but there is ALWAYS something else out there, and if something breaks (which it will eventually) you're not going to be able to afford it. Take it slow, and spend the money you can afford a little at a time.

1gary

I have three choices here.One I already made in posting this.

I think to build a engine on credit is a really bad idea.

So no I am not going to tell you how.

estesformula87

ok after thinking hard about it your right to tie up a loan in somthing that i could blow up is stupid so im changing some things i can afford out of the old wallet i got a 750 carb put it an and am having trouble getting it tuned in when i get on it really hard and like a burn out or such and lift off the throttle fast it will die or some time under light load it will stall for a second when i switched to full time vacuum it does have more power in second but to me feels like i lost some in third gear am i running rich or lean or is the diffrent carb going to need diffrent timing with the 600 i set it right about 34 totall if i remember right

DeltaElite121

Which carburetor did you get, and did you get it new or used?

estesformula87

edelbrock 1407 never messed with holly before heard many times much better carb it was used but i rebuilt it my self before putting it on floats are adjusted right but good thing i took it apart cause they where way off

estesformula87

some one please help cant figure this out is it just to much carb for the car or what i cant get this thing to tune in and at the moment its my wifes transportation to work