Wilson Manifold Spacers

[RemCharger]

My experience with them is they help low end response by increasing vacuum signal to the venturi. This helps e.t.s in a car with poor low end performance. I.e; too big of cam/cube ,or too small of a convertor or the such. But it appears that others have seen the same results as I have which is no mph gain= no horse power gain. Its all in the torque.

 

[BigHemi]

I have seen almost a tenth of a sec ET reduction in the 1/8 mile w/ a 1" HVH spacer on a mid 10 sec combo before. The same spacer did nothing for a mid 9 sec combo.
It all depends on the combo and intake manifold. Like said before, only one way to find out. That's why I have a few assorted 1/2", 1", open, tapered, and 4 hole spacers hanging on the wall.