Single Turbo '65 Valiant Build

There are so many variables: weight, rear gear, cam spec, etc. Its almost like buying a cam. Have a plan from the start. You got the forged 318 pistons so your going to run a 318, fair enough. find your heads and turbo profile grind and go from there. The turbo is like a fixed jet carb, there are so many out there and they are all unique. 5.0 guys ran turbos for years on stock builds. Id check their sites and see what worked for them with stock heads. Here is a 650hp 318 from Oz.
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"Just A 318": This Turbocharged, 650 Horsepower Chrysler Centura Is Killer! - BangShift.com