I recently removed the Cosworth M2 intake cam on my IX because I saw some abnormal wear on it while installing some new valve springs. All the stories of snapping Cosworth intake cams got me paranoid, so I took it out and replaced it with my stock MIVEC intake cam.

I kept the M2 exhaust cam in. Is it okay to run this setup until I get a new intake cam? Anything I should be concerned about?

 

Your tune would be affected because the duration of the cam is different.

Less intake opening.. I guess drive it around,but don't beat on it and hope that the new cam comes within days. Just watch your AFR's and knock counts