What springs would be good to use? pushrods? How would it run if I didn't tune it?

 

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918's, 7.4 chromoly PR's, with an m6 you can get away with stock tune, though with just a basic and minimal tune driveablity willl be that much better.

great old school cam, i liked it better then the old tr230 i had

 

jrp hit everthing. m6 cars can get away without a tune, but my auto definatly needed it. it puts up numbers pretty close to these huge *** cams on the market today, yet is easy on the springs and the wallet if you can find a used one. you'll be happy.