ok, i am new to big displacement engines. on that note, i just traded my POS civic, for a POS (or so i thought) camaro. on further inspection, it has a 355 L98 (board from 350), a full exhaust job stock headers , a street dominator intake manifold, and pink rods.

i have no card and a bad dizzy, so i have yet to see how this frankinstein camaro runs.

but i have an idea of my goals in this build. i want to rev around 5,800 (jw, how high can it rev with those rods and stock heads?), keep it carburated if it doesn't lose to much power, and push the rods to their limit (450hp but ill aim for 500hp).

parts to buy: a 600cfm holly or eldabrok card, a dizzy (sugestions?), new headers, and somthing that can put out some boost (i hate turbo lag so superchager or belt turbo only). i also want to do this in steps, first is just to get it running, so eldabrok or holly carb? is 600cfm good? what ignition systems are good for 5.8k rpm's? any parts, fixes, or sugestions are welcome.

no thread jacking or swap talk, i can't aford to do a swap, and i don't have the time.

 

As a general rule I like to use a carb the is 10-15% larger then the base calulation. In your case.

355 * 5800= 2059000
2059000/1728 = 1191.551 (this converts Cu in into Cu ft)
1191.551/2 = 595.8 Cu Ft (Div by two because a 4 stroke on draw air ever other revolution)
Now add in the 10 pecent and you have a min size of 655 CFM.

You want the 10% cause you do not want to max out your carb. As a carb get close to its max CFM it dose not work as well and the above calculation is very crude it does not take into account air density or temp. Think of the +10% a saftey factor. Over sizing a carb can be a bad thing but normally I don't see an issue until you are 20-25% oversized.

For me, I would go after a 670 Holley Avenger. But i want a car with street manners. This not the best carb for racing. Not that its bad it would just not be my first pick for racing. IF you are really going to add boost you would need to do some more research. I doubt the 670 would be big enough since you will be using a lot more air. I don't know enough to help in that area.

Good luck

 

im not sure what you mean by pink rods, but i know the factory rods are safe up to about 7k. a factory distributor is also good up to about 7k before it starts to cause a misfire. look into an MSD distributor, you can either go with an hei setup so it will be a plug and play (assuming the car had been using a factory setup), or a conventional firewall mounted coil and ignition module.

 

ok thanks for advice, as far as boost, i think ill have to suck it up an go turbo. my hp goal is 500. would a 700 cfm carb function at 500 hp in a L98 350 bored out to 359? if so will it also be functioal in the n/a engine, i don't want to buy two carbs, i can barly aford one.

also pink rods are the same as x rods if i recall rite, not amazing, but they'll work till i break 500hp @6k rpm

any cam rod suggestions, i'm new to chevy so i couldn't begine to guess at whats what.