Tune up and spark plug type?
 

Hello there everyone. I am quite new to the site and this is my second thread. I have had my 91 240 HICAS for about 1 month now. I love the car, and will be doing some mods to it.

Couple of questions for anyone that can help. First off what is the best type of spark plug to run in this car? ie. platnium, Iridium, Standard & Brand.

Second, my car seems to hesitate in first gear on acceleration. With this, when i start the car, I need to apply throttle to get it to start. I am not sure what the gas milage should be on this car but it doesn't seem great, any ideas?

I have replaced my fuel filter, new Synthetic 5w30 Castrol and filter, K&N Air Filter.

Thanks
the Gary