Thinking of purchasing a couple KPV2 but I need to convert them to a kpv3.
As I understand it, the pipe is different (is it simply 3 holes vs 2 holes, and if so, could another hole just be drilled?), the header is different and the timing might be different? Is the carb and its adjustments different as well?
Yup, sounds right to me. Maybe some engine builders like to build an engine a little differently for the 3 pipe, can’t remember, but you can throw the 3 pipe on there with no issues. Carb settings are the same, around 2 – 2 1/4 on the low and 1/8 to 1/4 on the high. Not sure how you have your carb setup now, but usually we’d start the low at 1 1/2 on the grid to get rolling and once we started getting up to speed we’d open to 2 or 2 1/4.
Header is the same.
Classified section is a bit empty at the moment. Check your local shop or with other guys at the track who run the class. I’m sure at least one of them has a collection of used 3 pipes laying around.