Longer push rods ?

[Alan Roehrich]

Originally Posted by danny waters sr

Well , i tried the 100 longs and the car ,with weather conditions at Darlington has picked up about 5-7 hundreths.....Weather was nasty and humid and car ran times like it did in 70 degree weather and 1700 ft of air. it was over 90 degrees and over 3000 ft of air and way humid...I was very happy with the results and can't wait for some good cool weather...
Now looking for a few more tricks ,...?

Glad to hear it Danny. It may be telling you that the engine can use more camshaft. Did you try raising the shift points slightly? Now that you've effectively increased the lift and possibly the duration of your camshaft (you'll have to plot it to see what you actually did) you may find you have raised the RPM where peak HP and torque occur, and may find you've also extended your useable RPM range as well.

You may also find you need to make minor tuning changes to compliment what you've found. When you make a discovery like you have, you often need to check your tune up to see if you need to make changes.