Recent content by desertdog1
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Heat Riser Help to Pass CA Smog
I know this is an old thread, but I have an 83 C20 and have a similar issue with my 454 EFE "heat riser" valve. I am in Arizona and must pass emissions every year. The connection between the EFE valve and the metal tube going up to the TVS on the intake manifold is broken. If if use the...- desertdog1
- Post #8
- Forum: Tech Discussion
