Missed on this combo?

First of all, you don't have enough cylinder head to open the LSA up. There have been published dyno pulls on this.

You are too wide at 108. Look at the mid numbers. They are down.

You are trying to fill a cylinder that is handicapped by not enough intake duration (or too much exhaust....what did they do...decrease intake timing or increase exhaust timing????) and then they open up the LSA to make the RPM carry past peak. You don't have a carry past peak problem do you? You have a mid RPM issue right? Harold Brookshire and I spent hours discussing this and HE wasn't big on blowing the LSA to make a cylinder head limited engine carry RPM.

On my BEST W-5 heads that went 365 CFM on a 2.100 valve with a 55 degree seat needed 278/282 at .050 to shift at 8800 on 340 CID. The only reason it had any split was I was on alcohol or the exhaust would have been 278. And that was on a 109 LSA.

The 1990's did more to screw up cam design and engine building than even the bullshit 1980's with its "swirl and tumble" porting nonsense.

You need to fax or email the dyno numbers to several cam companies and don't tell them whose cam it is and see what they all say.

You don't have enough head to move the LSA out any more. I'm the lone voice out there. Move the LSA out and it will kill the mids. Always does. When I see mid RPM numbers down the first thing I look at (if the RPM peak is where you want it) is LSA. Move it to 104 on a single pattern and out it 2 degrees advanced if you use a timing chain and watch it go big in the middle.