Holley is the biggest dog in the yard and is likely to be in business for a long, long time. They came out of Chapter 11 bankruptcy in 2010 and were healthy enough that in 2015 they were able to borrow the capital for the MSD purchase.

Holley has been able to adapt to new technology and keep current, so they aren't faced with a steadily dwindling market.

The Mopar breakerless system is certainly good enough for a street car, as is the GM HEI. But where do you get a brand new Mopar type ignition box these days? Even, where do you get a good HEI module nowadays? The MSD box works and is made in USA and has a stellar reputation, even with the few naysayers we have here.

Personally, I grew up with Accel and I like that yellow color better than the red. I also like their 300+ system, although it went away with the MSD takeover of Mr. Gasket.

Pick your aftermarket box for street cars based on which color looks good under your hood, they all work (USA ones at least).

R.