Tech first off thank you for the info. I appreciate the help.

But over the last 2 days I have spent hours on this forum reading threw 100 pages of post reading each post that had anything to do with 305 engines. Yes it was actually 100 pages I have learned a lot read a lot of articles. I realize I need more info before picking a cam and the final selection will be determined between me and the tech people at the company I choose to pick a cam from. But asking a opinion on here is just part of the info gathering to have a more knowlegable base what company to go with.Allso what part of 305 class do you not understand. In My previous post I stated it must be a 305 I am aware of the 350 305 debate but the rules are clear IT MUST BE A 305 so you constantly telling everyone to go to a 350 will fall on deaf ears here. I know if you have said it once you ave said it a 100 times on this forum. Learned a lot off this forum but the 305 is just as buildable as a 350 IMO so cut a little break to the people that are building them they have thier reasons to do so.

With that said has anybody had any experience putting a 3.750 crank in a 305 any advice would be appreciated.

Allso experience with Sig Erson cams what do you think of them.