Yes my "hot rod" is a little different. but what i have learned over the last couple o years is "an engine is an engine" and all piston engines are the same.

that said, a redrive,mmmmm, no i'll just have a constant speed prop. the great thing about an aircraft engine is that it is run, with a cs prop, at just 2 RPM's. in my case 2400 and 2800.

so i can design for max efficiency for just those two rpm's and my job is simpler. i have already had burns stainless do the numbers on the exhaust - i know how long to make each runner and i have the formulas to size the intake runners and plenum.

my goal in this is to make the engine more efficient, both in fuel burn, and need for boost at altitude to "normalize" at 25000 feet and below. also - the magnetos are mechanical money pits and i want electronic ignition.

the reason for the new injection and a requirement of the new injection is to level out the air fuel ratio in each head. i want to make the EGT's within 10 or so degrees of each other, that will allow lean of peak operation

so anyone experienced with ECU's that allow trimming each cylinders A/F ratio?