HI Keith,
I am in your class, my engine is 6.04 ltrs. I too have no issue with that as it is probably where I need to be.
My engine is based on a dart block with a 4 1/8th bore. It has a stroke of 3.4 and a rod length of 5.4.
Depending on what pistons you use and the final bore size, some of these combos are just under 6 ltrs, 5980cc. Others are just over at 6040cc. I think it is stupid to put a line thru the middle and have some in class 2 and some in class 3. We all should be in class 3 for the shelby fest.
We are talking about a 1% difference in capacity for what are essentially the same engines. Not sure that is a fair competition.
Just my 2 cents
Hey, I am watching you boy...
Phil