Originally Posted by
jasun
I'm a fan of edelbrock. I had a Holley but my timing was off so it wasn't its fault but the first time it back fires through the carb you more then likely have to replace the power valve. I feel if you replace (which I would rebuild it first) I would change it out for an edelbrock. Just my 2cents
This old issue has been addressed since 1992. http://www.enginebuildermag.com/2013...y-carburetors/
For carbs older than that Holley offers a retrofit kit to protect the power valve. https://www.holley.com/products/fuel.../parts/125-500
If you have your old carb rebuilt, having this retrofit done wouldn't be a bad idea.
1992 Supra Mariah - Red
PCM 351HO 285hp - PCM 1.23:1 Transmission
OJ XMP 4 Blade CNC 13x15.5RH
"People do weird things to boats" -Unknown