Starter specs ?

If I remember, it's the ground that's the weak link, when I upgraded my starter, I put in a heavier ground wire.
Yes mine needed to be upgraded it was slowing down the starter.
Might have been the way they crimped the terminals
I have since recrimped and soldered all the terminals and put another battery in the air filter box (had to break out some of the top of air filter box)
All of this was done because of a cold start problem i once had.
 
While I had the engine out I replaced both the pos. and neg. cables with 4/0 welding lead, it's an over kill, but had it at the house. Battery is cca 330amp and the Toyota bigger starter.