OPINION ON DISTRIBUTOR

Johnny Pace said
Some an the allen screw internal that can limit/adjust the vac advance.

I don't think MSD dist's have an adjustable vacuum can but I'm sure it couldn't be that difficult to limit it, if you need to

https://static.summitracing.com/global/images/instructions/MSD-8388.pdf

...also, according to the instructions, they only provide 10* of additional advance...if you have 35 total, then you should only be getting 45 under part throttle cruise with total timing