Quote:
Originally Posted by TestDrive
Crankshaft sprocket, right?
Does a roll pin or some such go through the indexing hole?
No keyway?
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On a metro there is a roll pin on the cam. Just drill a new hole and you are good
I did a test on mine and drilled 4 extra holes and with a combination of moving the belt a tooth and the extra holes I could adjust it to about anywhere. Turns out on a stock xfi cam 3-5 degrees is best and on a stock cam 5-10 is best.
As far as changing the cam profile itself, the best place to ask is somewhere that does custom cams already. Some place like comp cams or lunati. I had a custom comp cam made once for a sb chevy. Not really sure if they do every engine but they would probably be able to wild guess and make a better profile than I could work out on my own.