I'm a new guy here and am just finishing up my 302 build-up from an FMS shortblock. There's a pick below 
. For those of you who are curious, that is the Quality Roadster's Mass-Flo EFI system .
Anyhow, I'm having a hard time finding plugs to fit in the side of the shortblock. There are two threaded holes between the headers on both sides that the '87 to whatever factory blocks didn't have. It appears that they go into the coolant passages of the block. Any idea where I can buy plugs for it? Thanks.
. For those of you who are curious, that is the Quality Roadster's Mass-Flo EFI system .Anyhow, I'm having a hard time finding plugs to fit in the side of the shortblock. There are two threaded holes between the headers on both sides that the '87 to whatever factory blocks didn't have. It appears that they go into the coolant passages of the block. Any idea where I can buy plugs for it? Thanks.
