Best mini starter for RB big block 440 engine with TTI headers.

I just installed the terminal extensions I bought off ebay.
"The Best" ones according to seller...
I'm not sold on using this. After having to enlarge the hole on small arm of "the best" one,
this still seems too close to the block. They should be facing AWAY from the engine, not toward. Not much is accomplished by using these extensions, IMHO.
Jim, how close is that wire connector to the block?