MonsterBilly

I was thinking about picking up some new Eddy heads but then a buddy brought up a good point. why not just supercharge it. If i supercharge it than it wouldnt really matter as mush how the heads flowed because i would be forcing more air into the cylinder.

Is this a good point?

I found a complete used system for $1050.

my77stang

for 1k you'll get more from a supercharger, but as your forcing more air into the motor better port flow means more and more so heads should probably be your first buy.

67mustang302

You force air into the engine by compressing it, compressing it makes it hot. Older stock engines with iron heads don't take kindly to hot induction charges. And a crappier flowing head needs more boost pressure(therefore more heat) to make as much power as a well flowing head with less boost pressure. You'd need a system with a good intercooler as well to have it work well. In reality a good h/c/i setup could make more power more reliably than just trying to put boost to an engine.

2+2GT

Having owned and built supercharged an turbosupercharged engines, You'll get much more for the money with the supercharger. If you keep the boost down to 5-6 psi, you'll be fine. Supercharged engines were around for many years before aluminum heads. Even in the 50's, Thunderbirds and Hawks, for example, had superchargers. Some 66-68 Shelbys had superchagers, and iron heads.

If you go for higher pressures, you are going to need all sorts of upgrades, forged pistons, water injection, forged rods and crank, etc. If you go to 10-12 psi, you'll start blowing head gaskets, etc. just to start with.

cprstreetmachines

Depends on your budget. 1050 is the for the blower kit. You will still need other things. I'd pick heads here for simplicity. That's being said, the blower would make more power than the heads alone.

htwheelz67

I say heads and a blower.......

MonsterBilly

the 1050 includes all piping, intercooler blowoff valve and exhaust with bulk piping.

1slow67

I would get the blower

67mustang302

It depends on the type of blower too. Roots make a LOT of heat, and on a stock engine with iron heads and cast pistons you could only run minimal boost, you're limited by fuel availability if you don't want to burn the engine up. At least with an h/c/i setup you can get more aggressive. Centrifugal isn't quite the heat issue that a roots is, and you can get away with more boost, especially with a blow through carb.

68EFIvert

+1. Heads first then add the blower.