SB

iTrader: (1)

Which 502 Mag ?

Reason for asking - the carbed version's have a high rise GM intake. The MPI's have fuel injection, and yes, if you convert to carb with Holley 800 or so and a good aftermarket high dual plane you will gain power. With it's dinky lame azz cam, a HR dual plane with work well.

stimleck

mark 5 carbed version, embarrassed to say I have no idea what intake is on it or what cam is in it

MILD THUNDER

iTrader: (3)

I always enjoy seeing an engine combination, with a dyno sheet. Esp a 540 with AFR 315 heads.

bck

If anyone is interested and can post it I can send you the dyno graph of my carbed 540 with 315 AFRs and vic Jr.

Black Baja

iTrader: (2)

Don't forget about the tunnel ram guys. The old myths about them have been smashed time and time again and a properly tuned tunnel ram will increase the air flow of the cylinder head...

turbo2256b

iTrader: (1)

The only time I have flowed an intake and recored a increase in the flow of a cylinder head is with a realy well designed sheet metal intake, most still loose a bit. A well ported cast intake of any type or out of the box drops aiir flow through the head.

Black Baja

iTrader: (2)

And your point is?

sutphen 30

thats for sure,especially for larger intake vales like 2.19 or 2.25"

turbo2256b

iTrader: (1)

That an intake that can flow more wont increase air flow of a cylinder head unless the cylinder head already has the ability to flow more air.

Black Baja

iTrader: (2)

No it does I've seen it done on a flow bench. It's been a couple years since I've seen it and honestly at that time I really wasn't interested in it @ .500+ lift the head started gaining with the tunnel ram on it not much but it started gaining. I kinda dismissed what I witnessed on my buddies bench until about a year ago. I started looking into tunnel rams. I called all kinds of cylinder head guys alot of them said yes if done right the will pick up some said no they will not. They are called a tunnel ram for a reason...