Iam in the process of rebuilding my 87 GN.
I have been looking into Postons Performance kits.
Has any one delt with Postons and are parts of a quility nature? Does any one Know of a how to do
instruction manual on do it yourself porting of stock Iron heads.
Thanks
I have been looking into Postons Performance kits.
Has any one delt with Postons and are parts of a quility nature? Does any one Know of a how to do
instruction manual on do it yourself porting of stock Iron heads.
Thanks