409 headers for dragster
- Thread starter Howard Hull
- Start date
Howard Hull
Well Known Member
Gas is cheap for the fun you're having..... 
Howard Hull
Well Known Member
You are right, the fun factor is over the top. Hearing that 409 at full song is beautiful. It is pulling so hard, If I had another 100 foot, it would be doing 130 MPH.
Howard Hull
Well Known Member
I have been building this 8-carb manifold in my head for the past 5 years. I have a 6 carb manifold, but I don't like the way it is set up. Two years ago I started making a cardboard template. I bought a piece of 3/8th" of aluminum, as a base plate. This year I took my cardboard template to a local boat shop that does aluminum welding, and they created my plenum. I made the plenum small, to maintain air velocity. The plenum is cool to touch when the engine is running, I believe that is due to high air/gas velocity through the plenum. The engine ran the best it has ever ran, 113 PH with a 6.6 sec ET. The previous duel four barrels flowed total of 1200 CFM. The eight Stromberg 97s flow 1240 CFM, I don't believe that extra 40 made a big difference. I do believe 8 accelerator pumps did help. I believe the air /fuel mixing in plenum and cooling the incoming charge did help.
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Really great your ideas worked out Howard.... 
Way over the top on the cool factor for sure....
Way over the top on the cool factor for sure....
What tranny Howard???? And what about the 2 levers sticking up?
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