Looking for a Valve spring compressor

[sssammm]

Looking for something in the picture below, which is for an LS engine,
does anyone here have this tool kow the measurement between the 2 holes?

I need something that can reach 91mm between the holes
the puller type compressor is crap

thanks
sam

 

[sssammm]

found one, fits like a glove,

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[speedracervr4]

Who makes it?Part #?

 

[sssammm]

LSM SC-100

 

[speedracervr4]

Thanks!!!!