I have a 351c in an XE. I am trying to get the carb away from the manifold and heat etc.
My car red lines at 6,000ish so I am best suited to a dual plane manifold but have a torker single at the moment. I will be moving onto dual plane very soon.
out of these spacers what would you guys run?
-I have a hornet scoop so I would be able to fit up to 2" extra.
-I am running a hume 650DP holley. Not sure of listing#.
-Open 1" Spacer, Black Phenolic Plastic ....#8710*
-4-hole 1" Spacer, Black Phenolic Plastic ....#8711*
-Open 2" Spacer, Black Phenolic Plastic ....#8712*
-4-hole 2" Spacer, Black Phenolic Plastic ....#8713*
-Performer Divided-Wall 1" Spacer, for Two-Plane Manifolds ....#8714*
-Open 3/4" Spacer, Wood Fiber Laminate ....#8719*
-Open 1" Spacer, Wood Fiber Laminate ....#8720*
-Open 1/2" Spacer, Wood Fiber Laminate ....#8724*
-Divided 1/2" Spacer, Wood Fiber Laminate ....#8725*
I am thinking...
OPEN- good for high HP, along the lines of single plane.
4 Hole- good port speed, good for me maybe?
DEVIDED- good for dual plane but still higher rpm maybe
also this quote shows woods to keep the heat out better....
"Use open spacers where more plenum volume or more carb-to-plenum floor distance is required. 4-hole spacers enhance low-rpm torque and throttle response and dampen reversion effects on the carb. The superior heat insulating properties of wood fiber laminate are ideal for reducing heat transfer to the carb."
I would love it if the spacer didnt effect HP or Torque at all, I am only doing it for the heat transferr problems.
do the wood spacers look shit?
I will poll a couple I am guessing are correct.