Some of us old dog take longer to learn new stuff, some don't
Dominic loves your kit he used
Your correct on the parts available today versus what was available back when I started drag racing and trying go faster with the NHRA stocker cars
The stroker 400 motor I have in my car now has the Jesel paired shaft system on the used heads I bought for it, they are 1.55 ratio, not what I would have bought new. This motor rotates over by hand a bunch differently on the engine stand than any other motor I've assemble with similar valve spring pressures.
Its to bad the Mopar drag group didn't mention the problems and solutions on the single shaft systems in the 1978/1979 seminars when Bob Glidden was racing the W2 motors for them
I am looking forward to making the all new B1-MC with a good rocker arm set up on it to see how much more power it will make compared to the first B1 headed motor I made with a set of Harland Sharp 1.65 ratio single shaft system on it