[TR] TR4 - Spark Plugs

[tr3driver at ca.rr.com]

---- "Tim I. Purdy" <timipurdy at citlink.net> wrote: 
> I need to change the spark plugs in my TR4 '64. Currently, I am using NGK's
> BPGHS and was wondering what others use. I onlu put these in two years ago,
> and giving me problems. All opinions are truly appreciated.

I've been running Bosch WR7BP ever since Ken Gillanders at BFE recommended them.  Can't say I've noticed the power increase that he claimed they measured, but they seem to work well for me.  Been changing them maybe every 20k miles, just because, but they don't look like they need it.

Randall