This is what I have

1987 L98, Edelbrock T.E.S Headers, Catco High Flow Cat, Borla 3" Cat Back, Jet Stage II Chip, SLP Siamese Runners, Ported/Siamese Plenum,

I am getting a set of stock heads worked on rite now, after they are on how much do you think I will be putting out at the flywheel and also how much at the wheels.

Also how much more would an Edlebrock TPI manifold give me in the end too. Thanks

sorry I know alot of you hate these questions but I appreciate it, I have been wondering this for while.

 

rather than spend money on getting stock heads worked, and on an edelbrock intake, get a set of vortec heads, and the scoggen dickey base.

easy 50 horsepower gain over stock, even with the stock cam. LT4 hotcam, or some other stout cam will build a ton more hp as well.

 

Yeah but that would be over $1,000. I'd only be spending like 300-500 through connections the other way.

 

I really cannot comment on the heads, though any work on stock heads seem to give nice gains. This work on the heads will be complemented nicely by the added flow of the aftermarket intake.
I have an Edelbrock on my ZZ4 and it was a big difference over the ported stock unit I used to have.