how important is it to have a really good ignition setup??
Will it give you extra HP???????

 

ANYONE?!?!?!?!?!

 

If you have a relatively stock engine with no more than 10:1 compression, a stock system in good condition is adequate to 4,500-5,000 RPM, where it will tend to fall off in spark energy. If you have higher compression pressure from alterations or boost, the spark may extinguish at a lot lower RPM.

How's that for evading a direct answer?

 

would it be alright for a 71 350 8:1 CR?????????

thx for answering
:hail:

 

Depends on what your "stock" system is. On the 71, I think they were still using points..... Such fun. If you go to the junkyard, you can score an HEI distributor, with vacuum advance for under 20 bucks. It is a one wire hookup. (must be hot in start and run)

Have fun.

 

Blade,

If you are running at 8:1 with no boost, no charging effect, no nitrous, and on regular gasoline (no nitromethane) the stock HEI system should be adequate to 5,000 RPM with a good coil. Since it's a '71, you may still have the Kettering (breaker point) distributor, and a CD box or conversion to HEI may be a good idea at higher RPMs.

 

i forget to say that its been board out to 0.030 making it a 355. would this cause the CR to go up?? Iam asking this because the ignition feels real weak, before the motor use to have a load low rumble when i start it up and now you can barly here it and feels slugish.