jmdgto

i have searched this. i have a fast 92 on a 408 build and was wondering was it worth it to port it ? tks

Slvr00Bird

iTrader: (2)

Search some more.. It's there..

VeTTeMaNC486

Yes.
5 Character bs.

green28

iTrader: (8)

Don't have any numbers to support my answer, but I would say go for it on a bigger cubed motor like what you are building.

Johns00Z28

iTrader: (6)

Probably depend on who ports it but you should definitely be able to pick up some more hp.

SLOC5LS6

I've always heard it was worth 3-5 more ponies when u ported it

SREETRACEGUY

iTrader: (13)

def worth it and it wll pull a few hundred more RPMs before leveling or falling off out also

SMOKNSS

iTrader: (3)

I dont have a comparison but vengeance ports fast manifolds and they have some MEAN *** set ups come out of their shop.

Johnnystock

iTrader: (6)

Its worth 5-10hp on a stock cube LS1, I would guess its more for a 408ci..like 10-15?? I'm really guessing here, no solid proof. For me its really worth it on my setup I think. I'm sure I would've done around 10rwhp instead of 17rwhp for my ported FAST gains.

DVS99TRANS

iTrader: (7)

It also depends on what heads you plan on using also. If you are looking for a really good pricey set of heads, a ported FAST would be in your best interest. But I agree with Johnnystock though.

jmdgto

i am running afr 225 milled to 65 cc.

DVS99TRANS

iTrader: (7)

A regular FAST 92 will do you good unless you have those 225s ported on top of it. Porting can't hurt, but power for the $....
I say go for it, but are you willing to spend a couple hundred bucks for a less than 20whp in most cases? Your choice really