[P@blo]

Thanks everyone for posting. Steve, the FI bosses appear to be the same diameter just two separate instead of a single boss for two injectors. The small raised circles on the bottom of the runners look nothing like the FI bosses.

I ordered a couple intakes this black Friday. Both sets of heads from last year's sale checked out fine which lead to another purchase this year. I am sure if these heads were coming apart when used we would hear it six ways from Sunday even on the ready-to-run versions. So far guys are happy with SM.

I might pull the trigger on the main caps just yet. Feel free to update the thread if you are happy or unhappy with what you ordered.

BG you keep on keeping on

[Steve C.]

"Steve, the FI bosses appear to be the same diameter just two separate instead of a single boss for two injectors."

Noted. However the depth doesn't seem right if one wanted to drill and install injector bungs. They are 'taller' on the single plane intake.

Only opinion on my part, and formed on the basis of incomplete information.


.

[Half-Inch Stud]

The SM DualPlane arrived. Quality look good.Looks like Fuel Injectors will fit, when centered.
If jerked any small distance off-center AWAY from flange, they will certainly fit.

Doesn't seem like the injector protrudes, but can be made flush with the runner ceiling.

[Steve C.]

Most searches will suggest a single-plane intake with its consistent runner lengths and port roof heights are used for a direct port fuel injection conversion.
Additionally they are easier to get all the injectors mounted at the same level, and position.


.

[Dragncar]

if its a Pontiac 455 I am running a single plane all day long.
Smaller single planes like the Tomahawk work really nice on a stout 455.

[Half-Inch Stud]

Dualplane for the low ROM TQ under load, due mostly to ISOLATION.

Singleplane: 7robs5 & 1robs2, & 3robs4, & 5robs6 of their full AIR inhale. Mitigated at high rpm.

[P@blo]

Originally Posted by blueghoast

Last year I bought some of the black roller rockers. the fulcrum roller
seamed ok but but the small roller for the valve steams seam cheap and said
only 300 lbs of spring pressure, might use them on a small hft cam motor.
I hope the gold ones are better they claim 600 pounds of spring pressure.
I'll let ya all know what there like when I get them.yesterday I bought
some more stuff 7/16x2 inch rocker studs and a 1050 throttle body.
See if it will clean mine up with them having bleeds. bunch of other stuff
ordered too.

GT

How did the gold roller rockers turn out BG?

[blueghoast]

Been to busy with the holidays to even lool at them
I'll let ya know tomorrow after christmas.

GT

[blueghoast]

Well got a good look at the roller rockers and they look pretty good
from what I can see, nice fulcrum and roller tip to, looks a lot stronger
then the black one's I ordered. I'll be trying them on a motor for this
summer and see how they work in action.

GT