its just as important for us too.... mostly in volume though. keeping the bowls full fast enough can become a challange and sometimes the seats need to be upgraded to ensure enough volume.I'll add: Regardless of what kind of induction system anyone wants to use, FUEL SYSTEM IS KEY!!!!!
The fuel system has to meet the demands of the engine at any given rpm or boost level.
With the drawthu system excluded, you must upgrade the fuel lines, fuel pickup in the tank, and add a return line.
Fuel pumps have to be upgraded too, Electric! an intank or external "puller" pump will be ok, or a rotory mechanical pump will work
I may try that on the next one but I used the sawzall to get rid of the biggest chenck. As far as porting cast iron it's easy if you have the right tools.:biggrin: I have a bit that will chew through it faster than a hot knife through melted butter.Charlie, on my 401 intake the portion removed goes straight down from the scribed line to the plenum floor. Is it that way on the 4.1 intake, or are the walls sloped between the carb surface and the floor?
I posted those 401 pics 'cause I thought you might be able to use that 'drill press' method to remove the chunk of material faster.
You"ll need to go to last months posts. I did start them but I've been fighting a sinus infection for the last month that just won't go away. That and the weather hasn't been good when I'm off so I end up staying in so I don't get sicker.Charlie, you start on those heads yet? can't wait to see that!
Yeah, I know a guy that does the mod with a sawzall and gets a nice clean cut exactly where he wants it. I was afraid the saw might wander off course and mess up my manifold, do I used the 'drill holes' method to play it safe.I may try that on the next one but I used the sawzall to get rid of the biggest chenck. As far as porting cast iron it's easy if you have the right tools.:biggrin: I have a bit that will chew through it faster than a hot knife through melted butter.