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Discussion Starter · #1 ·
So I have a set of GT40 heads and an E303 cam lying around. I have been waiting to put the cam in until I had a valve job done on the heads so I could put them both on at once. Unfortunately, its been taking me longer to get the heads out to the machine shop than I originally thought so I have been debating just throwing the cam in without the heads for now.

My question(s) are...

Will putting this cam in cause any driveability issues untuned?

Also, is it worth putting this cam in now, or should I just wait?

ANY input would be awesome!
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