Quote:
Originally Posted by Pete
Port dividers work good if you make them yourself. Mine are only about 1 inch square, 1/8 inch thick and extend only to the centerline of the valves.
Adding only the center top port probably won't be noticed on an engine running on gas. Additionally adding the two top, end ports will bring a noticable improvement.
On a car other than a dragster it might become a problem dealing with an exhaust pipe system that meets the rules AND STILL WORKS.
If you can run race gas or alcohol you will find more improvement in upping the compression to 14 to 1 and running 2 ring flat top gas ported pistons with low tension narrow rings. Add 5 stage dry sump oiling and you have 40 more hp.
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Hey Pete,
I should have mentioned you as well. Glad you posted some of your findings.