HEI Does a Crab cap fit?

[DJ3100]

Does a crab cap fit a standard Large cap HEI or are they for completely different distributors?
Here's a link to what I'm asking about. Thanks

http://www.summitracing.com/parts/MSD-8017/?rtype=10

 

[Dr Crankenstein]

Yeah, different ignition altogether.

Here's the one you want,

http://www.summitracing.com/parts/ACC-8141R/

 

[DJ3100]

Thanks, Doc

I was trying to figure out if there was a way to use the HEI with my tunnel ram. I don't think the Accel cap is any smaller.