Reply to "4V port reduction"

Use the port inserts from Marino. Thin layer of Z-Spar epoxy
between the insert and screw the inserts in place so they
can never come out. Have the runners in the Strip Dominator
welded up. Jack Butler tried epoxying his 4V intake up and it
held for several seasons, then a chunk broke off and it destroyed
his engine. You need to reduce the runner all the way down its
length. Alternatively, you could sell or trade the Strip Dominator
for a Parker Funnelweb or Edelbrock/Ford Motorsport A331 intake
which already have the raised floors.

> The advice I got was that my cam (Crane "Hi Intensity" hydraulic
> with a duration of 224 @ .050) wouldn't be able to do much with
> the Strip Dominator because of low velocity in the large plenum
> and ports.

What sort of compression do you have and what is the lobe center
of the cam?

> BTW, The heads already have the exhaust ports reduced by way of
> a flat metal piece with bent "tongues" that poke into the ports.

I was recently provided a set of port stingers to test on the
dyno. Hopefully we'll test those this weekend. I also have
the intakes to test the reduced port theory but I don't have
any intake port stuffers on hand.


> On the exhaust side my plan was to have a local header shop
> fab a larger collector for the Hall headers and 2.25" or 2.5"
> pipes into new aftermarket mufflers.

2.5" into single inlet dual outlet Magnaflow oval case (long body
with short tips).

Dan Jones