Yes I did a search, no I didn't find what was I looking for.

Anyway..

I have a set of SBC Shorties from Jegs, I was thinking of installing those in place of the stock manifolds, using the stock Y pipe w/ a cat delete, back to a single in dual out borla muffler and tips out the back.

Is this a good setup for reasonable power? Is the stock Y pipe really choking the engine up that bad that it shouldn't be re-used?

Details: 305 with a 600 CFM on top.

 

Low to mid rpms shorties are good. The biggest choke point are on cars equipt with the single cat design, as both exhaust manifolds are forced into one cat.

 

Cant use your stock Y. Stock y will work with stock manifolds and that is it. Every set of headers for these cars comes with a matching y that works with those headers. You need a y for those headers if you are going to run them.

 

Erm, don't see why. I threw SBC shorty headers on my 92' Silverado and they bolted onto the stock Y without a problem at all. The headers came with the car, that's why I even thought about using them haha.

 

This is not a silverado. Most of these guys know what they are talking about because of experience. You asked a question, it was answered and then you turned around and say " shorty headers worked with my silverado's factory Y pipe". Who gives a **** about your silverado? We are talking about third gens.

 

Calm down, jesus christ. It was a statement, because I was just surprised.. I figured everything was pretty generalized.

 

I would say trucks are definitely more generalized. From everything I've read on here and doing research I dnt believe there are any headers out there that will just bolt in place of your manifolds w/o any Y pipe modifications.

 

Pipe is cheap, Put the headers on and build a set of true duals from there back. all you need is a set of glass packs and dump em by the rear wheels and put in a pair of low restriction cats if you need them.

 

That's what I'm thinking.. it's just getting under the damn thing. Lol.