Anticipation of how all of this is going to work got the the best of me, and since I'm still waiting a on a few bits to put the engine together, I decided to put this top end on my Motorsports engine to test it out. It has also has a billet rod, coated piston, the heat treated crank, and a Dyno 255 cam. It is not as hot as the 356 cammed shortblock and doesn't have the lightweight crank and piston, but I thought it would be at lest give me a chance to test everything.
I put it on, and she fired up on the first pull (although she's tough to snatch over!) The whole tone of the engine sounds different than the OHH head. The head that was on the engine was ported and has bigger than stock valves, the OVRM flat out revs! I am just blipping the throttle in the video below, and it's trying to eat! It is so responsive. On the 3rd rev on the video, I kept the throttle cracked just a hair and still wanted to rev at around 3500 RPM. So far, it seems very promising! We can definitely say that an exhaust port can be made into a great intake port.
I'm going to run it a little more and pull it back off to check the wear pattern on the top of the valves, ect. I did run 22# Dyno springs with this cam instead of the 36# springs I'll run with the 356 cam.
After hearing it with 255 cam, I can't wait to hear what a cam with .101" more lift, and 20+ degrees more duration!
[video=youtube_share;btw0r-uiLl0]https://youtu.be/btw0r-uiLl0[/video]