Originally Posted by Plymouth340
Originally Posted by LA360
All the tunnel ram intake tops I've seen have a 3D machined insert that the shear plate fitted on to. They usually just featured a radius to transition from the carb to the plenum.


How many different things are you going to try? A sharp edge, versus a radius or taper on the plenum side below the carb? Plenum spacers?

I made this for a friend in 2014, I am still waiting for it to be tested (the customer had some personal issues). No idea if it was good, bad or otherwise.

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Alan Jones