gapping the plug's 5 to 10 over, yes or no?

[Da Hawaiian Punch]

Howzit to all my fellow Vette raider's out there!!
I used to own a '79 pontiac grand prix with a chevy 400 small block in it.
One of the many thing's that I had done was re-gap the spark plug's five to ten over the stock gapping to inhance the performence, of course I did also have an MSD box.
Now being that the vette is a different type of car and small block engine, though still being a chevy, would I get the same result's from my car by doing the same gapping thing? or will it instead hurt me in performence?

 

[Mad-Mic]

i couldn't tell ya on the vette cause i run bosch platinum's +4 plugs. these plugs don't need to be gapped. when i used to run regular bosch platinums when they first came out ( or any other plug) if it said the gap was .045 i gapped them at .047. this helps burn the fuel more efficiently. also when you run these plugs that need to be gapped do yourself a favor.

down the shaft of the plug to the gap take a marker and run a line down the side of the plug to the opening. it should look like it connects the L part of the plug (can't remember that part of the plugs name right off hand) then when you are putting the plugs in face the marked part of the plug to the fat part of the cylinder. i think its to the left side. can't remember haven't looked at chevy heads in awhile cause i use the +4's and it don't matter but this is called indexing the plugs and gives it a better fuel burn in the combustion chamber which equals a few more horsepower.

i'm sure someone can answer this better.