so, essentially, if i go with the 7395, put it in at 0*, and getting a proper tune is essential for 87.I missed the idea of advancing the cam. I would not suggest it. The 7395 has an early IVC as it is. Been a while since I degreed either cam, but I want to say the 7395 actually closes the intake valve a few degrees before the stock L31 1264 cam does. It definitely builds more cylinder pressure at peak torque, requiring attention to the advance curve especially around peak torque to prevent detonation. If you go with the 7395, degree it in on a 106 ICL and let it eat.
For slightly less dynamic compression ratio and ease of running 87 octane, consider the Summit 8800. The 8800 is basically a roller version of the old 204/214 RV cams that found their way in every kind of smog era SBC to perk them up a bit. The 8800 could us a bit of cam advance because Summit calls for it to drop-in at a bit too late of an ICL for my taste in a L31.
Follow this post. He got it up, running and driving on the stock tune.
Summit 8800 cam upgrade
Hi there first post for me. I just wanted to share my experience with this cam in my '97 Suburban. Before I started the project I did a lot of research to figure out which specs or range of specs would fit my needs. L31Express's info sure has been helpful with all of his previous work. I had...www.gmt400.com
and if I dont wanna get a tune, run the summit 8800 cam, with new rockers and a touch of head work, and will work fine on the stock tune, but will wake up if I do get it tuned