Alrighty then, for ***** and giggles i threw a 100 shot onto my 1984 SWb chevy truck. Motor is a 305 with just a small cam, and edelbrock intake and carb. along with full exhaust. Well i know a 100 shot is pushing the limit on a stock bottom end 305, but the motor has about 5K on it.

Anyways, my ? is my friend has been told by some guys who run the bottle on their truck and say retard the timing every 2 degrees per 50 shot or so. Now is that right? and if not then what is??

plate kit has been on it for a month or so because i was unsure about the timing and never got any reall help... Im so anxious to spray this thing!!!

 

i use 2* for every 50 shot and throw in some TR6 spark plugs...but thats in my LS based motor. i cant say 100% sure that its the same with your platform.

 

with that 305, you will want to take out a few degrees of timing. If you follow what nos says in the book, you will be fine using the 2 for 50 method.

 

alrighty thanks guys. thats what i thought. appreciate the help!! and also i forgot to mention that i do have colder plugs in it. their similiar to TR6s though.

 

so my stock bottom end on my 305 will hold a 100 shot fine??

 

i think it should be fine with a 100....

 

Unless the 305 is really weak, a 100 shot is VERY safe. General rule is v-8s can take 150 on a stock motor. General rule is 2 for every 50 so with that you would be safe.

 

alrighty. well the 305 shouldnt be weak. it whoops up on 350s all day long. lol. well non cammed 350s that is.

thanks for the help guys!

 

to answer this the right way... you need a dyno and a wideband and tune it in right, but most people don't do that... I guess I'm not most people.

 

you dont need a dyno if you can read plugs, but it sure helps. I dyno everything, just to get it close and then tune it by the plugs at the track. It works for me.