Originally Posted by
hambone
The USA ran like a mofo today at the track. It's so quiet and smooth with the 2045/192 on it that it seemed kinda week. Then i got on the track with some buggies that had modded engines and i realized just how stout it is. Coming out of a tight corner or at the end of the straight it was running the buggies over. Nice engine. It idles all day. Tomorrow will be a 180 mile drive round trip for rb plugs. This is a tough call since the P4 has been working so well.
If the P4 plugs are working good for you and your not killin em I would just keep running them. Chances are the RB plug is not going to seal in there correct anymore either. Glad it's running good for you, the USA is an engine I wish I could still get!!!! I did find an old crankcase laying around if you do end up needing it send me a PM.