Top end kit vs supercharger

[Dwight]

do you have fuel injections or carb?

Dwight

[jayh]

Dwight

it's a fuel injected 5.0 HO

thanks

[Dwight]

Most of your hp will come from aluminum heads and cam. I like the Brodix heads from Keith Craft and one of his custom Comp cams. Cost about $2000.
You will need 70-80mm mass air meter, 70-80mm throttle body, 70mm upper & lower intake, larger air filter and 24 injectors.

If you change to carb you will need a fuel pump, carb, regulator, heads, cam, air filter.

Years ago Holley and Edelbrock sold kits, head, cam, etc. just about everything you needed to make 350 hp.
I bought the Holley SysteMax II for fuel injection and it made 288 at the wheels, which would be 350 plus flywheel hp.

You need to plan you motor to maximize the hp per dollar. I know!

I have some part left over from past motor upgrades. Three different heads, three TB, three MA, three cams, rocker arms and lifters.
Now I'm running a 354 stroker with 90 mm mass air and TB. Edelbrock 80 mm upper & lower intake. A custom chip and lots of dyno time. I'm making 400 rear wheel hp.

Do a lot of research and make sure you have someone (dyno shop) that can tune you motor with all the new parts.
If you change to carb it may be easier. Don't forget you can change rear end gears to may it faster off the red light.

some of these guys and tell you more about tubos and superchargers.
Dwight

[Dwight]

50 hp with a tubo should be cheap and easy.

Dwight

[UrQ]

In my challenge car we upgraded to the Trickflow topend for the 2012 FFR series, mine was at 329rwhp at the start of the season (on new stock bottom end). So for about 3K you can add 100+ rwhp via trickflow (heads, cam, upper/lower intake, 24lb injectors, 70mm throttle body and MAF to match).

I ran all season w/o any engine issues, pushing 6K RPM most of the time.

[D-CEL]

Jayh,
You know what they say about opinions.. So here is mine LOL
70hp is no problem in either direction. It really depends on how you want get there.
But with a blower. it’s just too easy
I have had 4 Vortech’s, a 5.0, 5.4 sohc, 4.6 dohc, and the V10 with nothing but good things to say about them. When you’re not into the pedal hard, they drive like a stock motored car, smooth and quiet albeit with a little whine. But when you spin them up, the extra hp you are looking for is there. They are a great fit for a street car with street tires. Because the power gains are higher in the rev range, they are easier on the tires coming out of the hole. On top of that you don’t have to crack the motor open and no drivability issues.
Then when you want more power (that you will want soon!) it is just a pulley and tune away. And you can get there for a lot less than $4Gs if you’re thrifty like me! Here is a used one for $1500
Complete Mustang Vortech V1 supercharger Kit Rebuilt Head Unit | eBay

Boost is good!

Jason

[MadDog]

If you are looking for 40 to 70 hp then top end is the way to go .A supercharger or turbo is going to give you more like 50% more power and over shoot your goal. But remember the car guys golden rule. There is no such thing as too much HP.