Twisted
The tin plate that I mean looks like the intake gasket except that the port opening is punched cut on the left, right and top, like a upside down U. The bottom is left connected. The purpose of the piece that is left attached gets bent back into the port, to deflect the flow upwards and closes in the lower part of the port. It has to be bent back and fitted into the port opening, as tightly as possible. I have seen it installed on a ford 351 to increase flow speed, and it appears to work. I guess it may have been the original form for lump ports. I spoke to the converter people and they suggested that since I am going to a 200r4 in the future, I may as well do it before I start playing with the converter. In the mean time I will pick up and old head and try that. Would you suggest a 250 or 194 head?
Thanks for the help.
