I warmed up the car today and decided I wanted to find out what my timing curve was like. This is the same curve I was using last Thursday at Test N Tune.

RPM - Degrees of Advance
850 20
1200 30
1500 32
2500 35
3000 39
4000 40
4500+ 40

This timing curve ended up giving me the best MPH so far. Here's my 1/8mi timeslip from the best MPH run.

60' - 2.438
330- 6.744
1/8- 10.264
MPH/ 70.23

My best ET came with my previous curve.

800-17
1000- 20
1400- 28
1800- 30
2000- 30-31

The timeslip on the run looked like this
60'- 2.162
330-6.590
1/8-10.176
mph-69.5

The day seems hotter the last time out. I did the same burn out and launch technique, or as close to the same as i could get it. But the 60' just wasn't there all day. Is my new curve ok? or should I add more timing. Motor is a 355ci with only 8.3:1 CR and 7.1 DCR.

For an indepth veiw at my combo: http://www.chevelles.com/cgi-bin/forum/ultimatebb.cgi?ubb=get_topic;f=4;t=021087

For 882 heads, I would recommend the total timing to be around 36-38*. Maybe 34, but open chamber heads usually like 36-38. And have that all come in by about 3000RPM. Once you get the 60' down, you should get some nicer timeslips...

Planned Change before running the 1/4mi track at Fontana

Try a 26.1inch tall tire.
Change spark plugs to Accel shorties (just because i already have them and pulling full length plug for reading is a pain)

dont waste your money on those shortie plugs.

Yeah, I know Brian, I already have them though. My bro bought two sets so one of them is going into my car. I know its not a performance increase, but it will let me get to the plugs behind the headers.

Anyone else want to comment?

Thanks.

By the way, are the Accel u-groove plugs actually rebadged/repackaged NGK plugs? They have Made in Japan written on them.

GRRR, does AC DELCO make a short plug? I'd rather buy MADE IN USA parts.